American Optical Corp
American OActive Patents
0
Total Holdings
289
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE2511248A1 | ENDOSCOPIC SURGICAL LASER SYSTEM | Expired / Lapsed | 1975-03-13 | — | 0 | Details |
| DE2309205A1 | SURGICAL DEVICE | Expired / Lapsed | 1973-02-22 | — | 0 | Details |
| GB1398022A | Transcutaneous sonic monitoring apparatus | Expired / Lapsed | 1972-10-12 | — | 0 | Details |
| DE1566045A1 | catheter | Expired / Lapsed | 1967-09-16 | — | 0 | Details |
| DE1498513A1 | Device for colorimetric examinations | Expired / Lapsed | 1962-11-17 | — | 0 | Details |
| GB1015057A | Improvements in and relating to optical masers or lasers | Expired / Lapsed | 1962-09-11 | — | 0 | Details |
| US4396583A | Device for single solution contact lens sterilization | Expired / Lapsed | 1981-08-14 | 1983-08-02 | 10 | Details |
| US4284399A | Contact lens mold | Expired / Lapsed | 1980-06-23 | 1981-08-18 | 3 | Details |
| US4209289A | Contact lens mold | Expired / Lapsed | 1979-05-14 | 1980-06-24 | 2 | Details |
| US4182547A | Image focusing apparatus for fiberscopes | Expired / Lapsed | 1978-08-10 | 1980-01-08 | 11 | Details |
| USD253909S | Refractometer | Expired / Lapsed | 1977-07-08 | 1980-01-08 | 1 | Details |
| US4181135A | Method and apparatus for monitoring electrocardiographic wa… | Expired / Lapsed | 1978-03-03 | 1980-01-01 | 14 | Details |
| US4149527A | Pacemaker artifact suppression in coronary monitoring | Expired / Lapsed | 1977-03-28 | 1979-04-17 | 22 | Details |
| US4141624A | Dynamic image enhancement for fiberscopes | Expired / Lapsed | 1977-11-21 | 1979-02-27 | 7 | Details |
| US4133466A | Tray and retainer combination | Expired / Lapsed | 1977-03-02 | 1979-01-09 | 2 | Details |
| US4123408A | Hydrogel contact lens | Expired / Lapsed | 1976-11-26 | 1978-10-31 | 18 | Details |
| US4106494A | Heart defibrillating and monitoring system | Expired / Lapsed | 1977-08-29 | 1978-08-15 | 8 | Details |
| US4105023A | Pacemaker artifact suppression in coronary monitoring | Expired / Lapsed | 1977-01-19 | 1978-08-08 | 10 | Details |
| US4091817A | P-Wave control, R-wave inhibited ventricular stimulation de… | Expired / Lapsed | 1976-09-27 | 1978-05-30 | 16 | Details |
| US4079470A | Artificial intraocular lens | Expired / Lapsed | 1977-02-16 | 1978-03-21 | 5 | Details |
| USD247251S | Portable physiological monitor | Expired / Lapsed | 1976-10-04 | 1978-02-14 | 1 | Details |
| FR2271802B1 | FR2271802B1 - - Google Patents | Expired / Lapsed | 1975-05-23 | 1977-12-02 | 0 | Details |
| US4028082A | Method of making artificial intraocular lenses with holes | Expired / Lapsed | 1976-02-10 | 1977-06-07 | 7 | Details |
| US4014049A | Artificial intraocular lens and supporting system therefor | Expired / Lapsed | 1976-04-07 | 1977-03-29 | 11 | Details |
| US4012823A | Method of making artificial intraocular lenses | Expired / Lapsed | 1975-12-08 | 1977-03-22 | 9 | Details |
| US4011941A | Contact lens capsule | Expired / Lapsed | 1975-04-28 | 1977-03-15 | 17 | Details |
| US4011007A | Optical fiber bundle image conduit | Expired / Lapsed | 1973-12-27 | 1977-03-08 | 5 | Details |
| US4002418A | Casting apparatus | Expired / Lapsed | 1975-07-10 | 1977-01-11 | 11 | Details |
| US4001667A | Constant current-pulse led drive circuit | Expired / Lapsed | 1975-05-02 | 1977-01-04 | 3 | Details |
| US3996626A | Artificial intraocular lens | Expired / Lapsed | 1975-09-22 | 1976-12-14 | 13 | Details |
| US3996187A | Optically clear filled silicone elastomers | Expired / Lapsed | 1975-04-29 | 1976-12-07 | 3 | Details |
| US3995259A | Method for displaying digital electronic data differently r… | Expired / Lapsed | 1975-07-02 | 1976-11-30 | 3 | Details |
| US3975779A | Artificial intraocular lens and supporting system therefor | Expired / Lapsed | 1975-06-16 | 1976-08-24 | 14 | Details |
| US3971073A | Artificial intraocular lens | Expired / Lapsed | 1975-04-09 | 1976-07-27 | 11 | Details |
| US3925825A | Supporting system for artificial intraocular lens | Expired / Lapsed | 1975-01-24 | 1975-12-16 | 14 | Details |
| US3920312A | Optical fiber with porous cladding | Expired / Lapsed | 1972-08-28 | 1975-11-18 | 10 | Details |
| US3913568A | Nasopharyngoscope | Expired / Lapsed | 1974-06-07 | 1975-10-21 | 5 | Details |
| US3910276A | Micro-surgical laser system | Expired / Lapsed | 1974-05-23 | 1975-10-07 | 17 | Details |
| US3909792A | Electrocardiographic review system | Expired / Lapsed | 1973-02-26 | 1975-09-30 | 17 | Details |
| US3906953A | Endoscopic surgical laser system | Expired / Lapsed | 1974-05-23 | 1975-09-23 | 8 | Details |
| US3899314A | Lens manufacturing process | Expired / Lapsed | 1974-03-18 | 1975-08-12 | 12 | Details |
| US3894129A | Method of manufacture of strain free contact lenses | Expired / Lapsed | 1973-03-15 | 1975-07-08 | 13 | Details |
| US3882277A | Electrocardiographic telemetry and telephone transmission l… | Expired / Lapsed | 1972-04-20 | 1975-05-06 | 7 | Details |
| US3850902A | Process for casting eyeglass frames | Expired / Lapsed | 1971-07-22 | 1974-11-26 | 2 | Details |
| US3830667A | Method of making flexible fiberoptic bundles | Expired / Lapsed | 1972-05-12 | 1974-08-20 | 5 | Details |
| US3825015A | Single catheter for atrial and ventricular stimulation | Expired / Lapsed | 1972-12-14 | 1974-07-23 | 4 | Details |
| US3824556A | Extra-corporeal medical instrument electrical connector | Expired / Lapsed | 1972-04-13 | 1974-07-16 | 6 | Details |
| US3807390A | Fiber optic catheter | Expired / Lapsed | 1972-12-04 | 1974-04-30 | 11 | Details |
| US3798571A | Slab laser system with means to overcome the positive lens … | Expired / Lapsed | 1969-06-09 | 1974-03-19 | 17 | Details |
| US3783878A | Atrial and ventricular pacer having independent rate and av… | Expired / Lapsed | 1971-12-06 | 1974-01-08 | 9 | Details |
| US3783874A | Method and apparatus for effecting photo-coagulation | Expired / Lapsed | 1963-10-23 | 1974-01-08 | 16 | Details |
| US3774619A | Source testing cardiac pacer with source-independent rate c… | Expired / Lapsed | 1972-01-10 | 1973-11-27 | 9 | Details |
| US3768486A | Atrial and ventricular demand pacer having wide range atria… | Expired / Lapsed | 1972-03-09 | 1973-10-30 | 7 | Details |
| US3759265A | Tem pulse width controlled heartbeat stimulating apparatus … | Expired / Lapsed | 1972-05-08 | 1973-09-18 | 3 | Details |
| US3756245A | Heartbeat stimulating apparatus including means for calibra… | Expired / Lapsed | 1972-05-15 | 1973-09-04 | 3 | Details |
| US3747604A | Atrial and ventricular demand pacer with separate atrial an… | Expired / Lapsed | 1971-12-06 | 1973-07-24 | 9 | Details |
| US3743825A | Illumination assembly | Expired / Lapsed | 1971-07-13 | 1973-07-03 | 8 | Details |
| US3714939A | Analog signal selective-peak sampler system for blood press… | Expired / Lapsed | 1970-06-01 | 1973-02-06 | 17 | Details |
| US3710798A | Laser system for microsurgery | Expired / Lapsed | 1971-08-30 | 1973-01-16 | 34 | Details |
| US3711787A | Neodymium glass laser having room temperature output at wav… | Expired / Lapsed | 1971-03-10 | 1973-01-16 | 7 | Details |
| US3693627A | Stimulator for treatment of tachycardia with a burst of sti… | Expired / Lapsed | 1970-09-14 | 1972-09-26 | 9 | Details |
| US3690143A | Self calibrating tidal volume impedance pneumograph | Expired / Lapsed | 1970-11-27 | 1972-09-12 | 4 | Details |
| US3674012A | Blood coagulation detection device | Expired / Lapsed | 1970-04-17 | 1972-07-04 | 17 | Details |
| US3661158A | Atrio-ventricular demand pacer with atrial stimuli discrimi… | Expired / Lapsed | 1969-12-15 | 1972-05-09 | 28 | Details |
| US3659613A | Laser accessory for surgical application | Expired / Lapsed | 1969-06-30 | 1972-05-02 | 6 | Details |
| US3651799A | System for mutually exclusive monitoring of natural heartbe… | Expired / Lapsed | 1970-05-11 | 1972-03-28 | 12 | Details |
| US3647299A | Oximeter | Expired / Lapsed | 1970-04-20 | 1972-03-07 | 14 | Details |
| US3646462A | Fiber for distortion-free propagation | Expired / Lapsed | 1969-11-14 | 1972-02-29 | 11 | Details |
| US3640599A | Simulation of an extended incoherent object source in holog… | Expired / Lapsed | 1969-04-04 | 1972-02-08 | 13 | Details |
| US3636473A | Composite glass laser rod | Expired / Lapsed | 1969-03-06 | 1972-01-18 | 10 | Details |
| US3625589A | Apparatus for controlling the propagation characteristics o… | Expired / Lapsed | 1969-08-19 | 1971-12-07 | 20 | Details |
| US3626312A | Laser preamplifier | Expired / Lapsed | 1968-10-04 | 1971-12-07 | 14 | Details |
| US3624400A | Apparatus for the production of high-resolution visible ima… | Expired / Lapsed | 1970-01-28 | 1971-11-30 | 15 | Details |
| US3623479A | Ecg electrode with partition | Expired / Lapsed | 1969-11-21 | 1971-11-30 | 7 | Details |
| US3621181A | Laser pattern generator | Expired / Lapsed | 1969-08-15 | 1971-11-16 | 11 | Details |
| US3621079A | Graft of hydroxyalkyl methacrylate onto polyvinylpyrrolidone | Expired / Lapsed | 1968-10-21 | 1971-11-16 | 10 | Details |
| US3619044A | Rigid gas permeable contact lens with softer edge portion | Expired / Lapsed | 1970-02-18 | 1971-11-09 | 1 | Details |
| US3615313A | Method of making optical fibers, image-transfer devices | Expired / Lapsed | 1969-06-09 | 1971-10-26 | 2 | Details |
| US3602836A | Laser structure with a segmented laser rod | Expired / Lapsed | 1969-04-01 | 1971-08-31 | 5 | Details |
| US3590811A | Electrocardiographic r-wave detector | Expired / Lapsed | 1968-12-06 | 1971-07-06 | 6 | Details |
| US3586444A | Striaescope for inspecting a transparent object submerged i… | Expired / Lapsed | 1970-01-30 | 1971-06-22 | 5 | Details |
| US3582820A | Erbium laser device | Expired / Lapsed | 1968-04-29 | 1971-06-01 | 8 | Details |
| US3579138A | Automatic gain presetting circuit | Expired / Lapsed | 1969-08-25 | 1971-05-18 | 15 | Details |
| US3572910A | Apparatus for measuring the refractive errors of an eye | Expired / Lapsed | 1969-03-24 | 1971-03-30 | 7 | Details |
| US3572952A | Float cuvette | Expired / Lapsed | 1968-02-20 | 1971-03-30 | 6 | Details |
| US3551035A | Rigid gas permeable plastic contact lens | Expired / Lapsed | 1969-04-11 | 1970-12-29 | 0 | Details |
| US3541848A | Acoustical imaging system | Expired / Lapsed | 1968-10-28 | 1970-11-24 | 0 | Details |
| US3534282A | Spike suppression circuit | Expired / Lapsed | 1969-08-13 | 1970-10-13 | 0 | Details |
| US3533956A | Laser composition | Expired / Lapsed | 1964-12-22 | 1970-10-13 | 0 | Details |
| US3528428A | Demand pacer | Expired / Lapsed | 1968-04-11 | 1970-09-15 | 0 | Details |
| US3505046A | Uniting fiber energy-conducting structures | Expired / Lapsed | 1966-07-01 | 1970-04-07 | 0 | Details |
| US3489481A | Apparatus for launching transmitting and receiving two-dime… | Expired / Lapsed | 1964-03-17 | 1970-01-13 | 0 | Details |
| US3487835A | Surgical laser photo-coagulation device | Expired / Lapsed | 1968-07-05 | 1970-01-06 | 0 | Details |
| US3484207A | Liquid sampling-pipetting method and apparatus | Expired / Lapsed | 1967-05-22 | 1969-12-16 | 0 | Details |
| US3461856A | Oximeters | Expired / Lapsed | 1965-10-23 | 1969-08-19 | 0 | Details |
| US3456211A | Fiber laser structures and the like | Expired / Lapsed | 1966-06-16 | 1969-07-15 | 2 | Details |
| US3455666A | Method of making laser components | Expired / Lapsed | 1966-05-06 | 1969-07-15 | 0 | Details |
| US3455667A | Method of making optical couplers | Expired / Lapsed | 1966-05-06 | 1969-07-15 | 0 | Details |
| US3453036A | Optical junction for light conductors | Expired / Lapsed | 1966-03-31 | 1969-07-01 | 0 | Details |
| US3445785A | Laser systems and the like employing solid laser components… | Expired / Lapsed | 1963-08-05 | 1969-05-20 | 0 | Details |
| US3442568A | Light-modulating device | Expired / Lapsed | 1965-11-22 | 1969-05-06 | 0 | Details |
| US3436142A | Fiber optical image-conducting devices embodying varying co… | Expired / Lapsed | 1965-05-17 | 1969-04-01 | 0 | Details |
| US3420601A | Materials and structures for optical faraday rotation devic… | Expired / Lapsed | 1965-06-24 | 1969-01-07 | 2 | Details |
| US3421097A | Laser amplifier having angularly disposed reflection reduci… | Expired / Lapsed | 1963-03-25 | 1969-01-07 | 0 | Details |
| US3397022A | Optical fibers and fiber optical imagetransfer devices havi… | Expired / Lapsed | 1965-12-20 | 1968-08-13 | 0 | Details |
| US3395366A | Mode selective laser structure | Expired / Lapsed | 1963-09-19 | 1968-07-30 | 0 | Details |
| US3387959A | Method for forming image-transfer devices embodying light-c… | Expired / Lapsed | 1962-11-19 | 1968-06-11 | 2 | Details |
| US3369192A | Laser configuration | Expired / Lapsed | 1962-07-27 | 1968-02-13 | 2 | Details |
| US3350183A | Method of making energy-conducting components formed of fib… | Expired / Lapsed | 1965-08-16 | 1967-10-31 | 2 | Details |
| US3348547A | Photocoagulating apparatus | Expired / Lapsed | 1964-10-16 | 1967-10-24 | 2 | Details |
| US3345990A | Heart-beat pacing apparatus | Expired / Lapsed | 1964-06-19 | 1967-10-10 | 1 | Details |
| US3335715A | Fiber optic catheter | Expired / Lapsed | 1964-09-18 | 1967-08-15 | 2 | Details |
| US3323886A | Radiation absorption heating of a bundle of glass fibers | Expired / Lapsed | 1963-05-01 | 1967-06-06 | 2 | Details |
| US3311845A | Q-switching apparatus for a laser device | Expired / Lapsed | 1963-06-10 | 1967-03-28 | 2 | Details |
| US3308394A | Optical resonant cavities | Expired / Lapsed | 1960-11-02 | 1967-03-07 | 2 | Details |
| US3296922A | Apparatus for determining oxygen saturation of blood | Expired / Lapsed | 1963-04-22 | 1967-01-10 | 2 | Details |
| US3286193A | Laser structure including laser energy transparent energy-d… | Expired / Lapsed | 1962-07-27 | 1966-11-15 | 2 | Details |
| US3281712A | Mode-selective q-switching laser structure | Expired / Lapsed | 1962-07-27 | 1966-10-25 | 2 | Details |
| US3279903A | Method of making fiber optical image transfer device | Expired / Lapsed | 1964-11-27 | 1966-10-18 | 2 | Details |
| US3278283A | Method of making light-conducting optical component | Expired / Lapsed | 1963-04-12 | 1966-10-11 | 2 | Details |
| US3275428A | Method of making honeycomb structure | Expired / Lapsed | 1963-05-21 | 1966-09-27 | 2 | Details |
| US3273445A | Fiber optical face plates having different numerical apertu… | Expired / Lapsed | 1962-10-22 | 1966-09-20 | 2 | Details |
| US3273072A | Laser amplifier with variable gain control | Expired / Lapsed | 1965-01-18 | 1966-09-13 | 2 | Details |
| US3267807A | Plurality of shield units for absorbing energy from a laser… | Expired / Lapsed | 1964-03-12 | 1966-08-23 | 2 | Details |
| US3253500A | Doubly clad light-conducting fibers with the outer cladding… | Expired / Lapsed | 1964-05-11 | 1966-05-31 | 2 | Details |
| US3249105A | Devices for measuring blood pressure | Expired / Lapsed | 1963-04-19 | 1966-05-03 | 2 | Details |
| US3247756A | Fiber optical image transfer device having a multiplicity o… | Expired / Lapsed | 1961-05-16 | 1966-04-26 | 2 | Details |
| US3247755A | Composite image display device formed of fiber ribbons | Expired / Lapsed | 1960-09-19 | 1966-04-26 | 0 | Details |
| US3244075A | Dispersive type optical filter utilizing light-transmitting… | Expired / Lapsed | 1961-02-09 | 1966-04-05 | 2 | Details |
| US3236239A | Defibrillator | Expired / Lapsed | 1962-07-17 | 1966-02-22 | 2 | Details |
| US3235672A | Optical sound recording and reproduction | Expired / Lapsed | 1961-11-17 | 1966-02-15 | 2 | Details |
| US3230475A | Structure for increasing light intensity at a distant point | Expired / Lapsed | 1962-07-10 | 1966-01-18 | 2 | Details |
| US3224851A | Method of forming a fused energy-conducting device | Expired / Lapsed | 1962-01-24 | 1965-12-21 | 2 | Details |
| US3220408A | Face masks | Expired / Lapsed | 1962-06-14 | 1965-11-30 | 1 | Details |
| US3210688A | Optical coupling means for lasers | Expired / Lapsed | 1962-09-10 | 1965-10-05 | 2 | Details |
| US3210597A | Electron beam indexing means for cathode ray tubes | Expired / Lapsed | 1962-03-19 | 1965-10-05 | 2 | Details |
| US3198059A | Fiber energy conducting device having a heat shrunken tubul… | Expired / Lapsed | 1960-02-08 | 1965-08-03 | 2 | Details |
| US3196738A | Fiber optical components | Expired / Lapsed | 1960-08-30 | 1965-07-27 | 1 | Details |
| US3196366A | Double end pumped optical maser structure using immersion o… | Expired / Lapsed | 1962-09-18 | 1965-07-20 | 2 | Details |
| US3193363A | Light-conducting devices and apparatus for making the same | Expired / Lapsed | 1960-01-15 | 1965-07-06 | 2 | Details |
| US3190738A | Method for uniting an abraded element to an envelope | Expired / Lapsed | 1960-11-28 | 1965-06-22 | 4 | Details |
| US3187627A | Microscope and recording optical systems utilizing tapered … | Expired / Lapsed | 1960-10-03 | 1965-06-08 | 1 | Details |
| US3177757A | Method of performing reflective oximetry | Expired / Lapsed | 1960-03-29 | 1965-04-13 | 2 | Details |
| US3157726A | Optical energy transmitting devices and method of making sa… | Expired / Lapsed | 1960-03-01 | 1964-11-17 | 2 | Details |
| US3148967A | Process for making optical image transfer device | Expired / Lapsed | 1958-02-24 | 1964-09-15 | 2 | Details |
| US3142235A | Catadioptric optical systems for cameras and the like | Expired / Lapsed | 1960-11-21 | 1964-07-28 | 2 | Details |
| US3141105A | Cathode ray tube with composite multiple glass fibre face | Expired / Lapsed | 1963-12-19 | 1964-07-14 | 2 | Details |
| US3141106A | Image transmitting screen | Expired / Lapsed | 1958-12-12 | 1964-07-14 | 2 | Details |
| US3119678A | Method of forming multifiber structure | Expired / Lapsed | 1960-11-18 | 1964-01-28 | 2 | Details |
| FR1344970A | Light energy generators and amplifiers | Expired / Lapsed | 1962-09-18 | 1963-12-06 | 0 | Details |
| US3104176A | Optical filters and method of making same | Expired / Lapsed | 1961-01-17 | 1963-09-17 | 2 | Details |
| US3101411A | Light conducting device to transmit ultra-violet radiation … | Expired / Lapsed | 1960-05-17 | 1963-08-20 | 2 | Details |
| US3091235A | Diagnostic instruments | Expired / Lapsed | 1960-06-15 | 1963-05-28 | 1 | Details |
| US3084694A | Photo-coagulation apparatus | Expired / Lapsed | 1960-03-29 | 1963-04-09 | 0 | Details |
| US3068772A | View and range-finding system for cameras | Expired / Lapsed | 1959-06-08 | 1962-12-18 | 0 | Details |
| US3068739A | Flexible optical probe | Expired / Lapsed | 1958-06-23 | 1962-12-18 | 0 | Details |
| US3066790A | Instrument carrying case | Expired / Lapsed | 1961-11-13 | 1962-12-04 | 0 | Details |
| US3063343A | Method and apparatus for supporting optical elements | Expired / Lapsed | 1960-10-03 | 1962-11-13 | 0 | Details |
| US3060808A | Achromatic polarization rotators | Expired / Lapsed | 1958-08-01 | 1962-10-30 | 0 | Details |
| US3051035A | Flexible pyroscopes | Expired / Lapsed | 1960-05-17 | 1962-08-28 | 0 | Details |
| US3050907A | Method for shaping a fiber optical device | Expired / Lapsed | 1958-06-27 | 1962-08-28 | 0 | Details |
| US3043179A | Fiber optical image transfer devices | Expired / Lapsed | 1958-10-29 | 1962-07-10 | 0 | Details |
| US3037241A | Method and apparatus for manufacturing light-conducting dev… | Expired / Lapsed | 1959-12-24 | 1962-06-05 | 0 | Details |
| US3033071A | Fiber optical field flattening devices | Expired / Lapsed | 1958-06-03 | 1962-05-08 | 0 | Details |
| US3033731A | Method for the manufacture of optical image-transfer devices | Expired / Lapsed | 1958-03-06 | 1962-05-08 | 2 | Details |
| US3009388A | Apparatus for determining fluid fractions and sedimentataio… | Expired / Lapsed | 1957-12-30 | 1961-11-21 | 0 | Details |
| US3007566A | Cases for lenses | Expired / Lapsed | 1959-04-13 | 1961-11-07 | 0 | Details |
| US3004368A | Manufacture of fiber optical devices | Expired / Lapsed | 1958-06-10 | 1961-10-17 | 0 | Details |
| US3000256A | Optical height finders | Expired / Lapsed | 1957-12-05 | 1961-09-19 | 0 | Details |
| US2995970A | Method of forming fiber optical devices | Expired / Lapsed | 1960-03-01 | 1961-08-15 | 0 | Details |
| US2992956A | Method for making fiber optical devices | Expired / Lapsed | 1958-02-14 | 1961-07-18 | 2 | Details |
| US2985784A | Optical image-forming devices | Expired / Lapsed | 1958-08-18 | 1961-05-23 | 0 | Details |
| US2983835A | Television systems embodying fiber optical devices and meth… | Expired / Lapsed | 1958-09-03 | 1961-05-09 | 0 | Details |
| US2980957A | Method and apparatus for use in the fabrication of light-co… | Expired / Lapsed | 1958-08-11 | 1961-04-25 | 0 | Details |
| US2979632A | Fiber optical components and method of manufacture | Expired / Lapsed | 1958-11-06 | 1961-04-11 | 0 | Details |
| US2969708A | Means for analyzing microscopic particles and the like | Expired / Lapsed | 1957-04-03 | 1961-01-31 | 0 | Details |
| US2941869A | Hemolyzing apparatus | Expired / Lapsed | 1956-09-24 | 1960-06-21 | 2 | Details |
| US2939362A | Optical image transfer devices | Expired / Lapsed | 1959-02-16 | 1960-06-07 | 0 | Details |
| US2901942A | Microscope focusing mechanism | Expired / Lapsed | 1956-08-16 | 1959-09-01 | 0 | Details |
| US2901122A | Display devices | Expired / Lapsed | 1958-01-15 | 1959-08-25 | 0 | Details |
| US2895138A | Means and method for forming goggles or the like | Expired / Lapsed | 1956-02-03 | 1959-07-21 | 0 | Details |
| US2875087A | Method of forming reflective surfaces | Expired / Lapsed | 1954-02-23 | 1959-02-24 | 1 | Details |
| US2850239A | Counting device | Expired / Lapsed | 1952-08-16 | 1958-09-02 | 0 | Details |
| US2828668A | Ophthalmic mountings | Expired / Lapsed | 1951-12-15 | 1958-04-01 | 0 | Details |
| US2824972A | Spectrographic apparatus | Expired / Lapsed | 1953-04-20 | 1958-02-25 | 0 | Details |
| US2816047A | Method of making an optical filter and resultant article | Expired / Lapsed | 1954-03-08 | 1957-12-10 | 0 | Details |
| US2810385A | Means for supporting apparatus on the head | Expired / Lapsed | 1952-11-07 | 1957-10-22 | 0 | Details |
| US2796313A | Means and method of heat-joining glass articles | Expired / Lapsed | 1956-05-01 | 1957-06-18 | 0 | Details |
| US2771878A | Intravenous infusion system | Expired / Lapsed | 1952-08-27 | 1956-11-27 | 0 | Details |
| US2758508A | Rear vision mirrors | Expired / Lapsed | 1953-05-29 | 1956-08-14 | 0 | Details |
| US2756928A | Integrating devices | Expired / Lapsed | 1951-10-23 | 1956-07-31 | 0 | Details |
| US2727547A | Containers | Expired / Lapsed | 1953-08-21 | 1955-12-20 | 0 | Details |
| CA512873A | Lens blocking devices | Expired / Lapsed | — | 1955-05-17 | 0 | Details |
| US2706262A | Diffusion coated articles | Expired / Lapsed | 1950-07-15 | 1955-04-12 | 0 | Details |
| US2693765A | Fluid pump and method of making the same | Expired / Lapsed | 1951-09-22 | 1954-11-09 | 0 | Details |
| US2691918A | Illuminating means for optical instruments | Expired / Lapsed | 1952-04-12 | 1954-10-19 | 0 | Details |
| US2688139A | Anatomical replacement means | Expired / Lapsed | 1950-03-09 | 1954-09-07 | 0 | Details |
| US2685228A | Phase contrast optical instrument | Expired / Lapsed | 1949-05-13 | 1954-08-03 | 0 | Details |
| US2678585A | Ophthalmic mounting | Expired / Lapsed | 1949-12-30 | 1954-05-18 | 0 | Details |
| US2678159A | Centrifugal separating and storing apparatus for blood | Expired / Lapsed | 1951-06-30 | 1954-05-11 | 0 | Details |
| US2664025A | Contact lenses and method of making same | Expired / Lapsed | 1949-10-06 | 1953-12-29 | 0 | Details |
| US2647514A | Apparatus for collecting and preserving blood | Expired / Lapsed | 1951-06-29 | 1953-08-04 | 0 | Details |
| US2645972A | Adjustment mechanism for microscopes | Expired / Lapsed | 1949-11-12 | 1953-07-21 | 0 | Details |
| US2642776A | Variable power bifocal lens | Expired / Lapsed | 1949-12-31 | 1953-06-23 | 0 | Details |
| US2638688A | Filter testing device | Expired / Lapsed | 1948-09-23 | 1953-05-19 | 0 | Details |
| US2637242A | Condenser lens system for projectors | Expired / Lapsed | 1949-02-08 | 1953-05-05 | 0 | Details |
| US2630736A | Spectrophotometer | Expired / Lapsed | 1947-09-16 | 1953-03-10 | 0 | Details |
| US2615148A | Electrical control means for driving mechanisms | Expired / Lapsed | 1950-02-18 | 1952-10-21 | 0 | Details |
| US2600975A | Unitary condenser lens assembly mounting means for projecto… | Expired / Lapsed | 1951-02-10 | 1952-06-17 | 0 | Details |
| US2593150A | Artificial eye and method of making same | Expired / Lapsed | 1948-04-02 | 1952-04-15 | 0 | Details |
| US2571743A | Reflecting image-forming optical system for instruments | Expired / Lapsed | 1950-05-20 | 1951-10-16 | 0 | Details |
| US2571721A | Artificial eye | Expired / Lapsed | 1948-01-30 | 1951-10-16 | 0 | Details |
| US2570149A | Device for aiding in performing eye surgery | Expired / Lapsed | 1949-11-25 | 1951-10-02 | 0 | Details |
| US2549926A | Apparatus for making optical devices | Expired / Lapsed | 1947-05-02 | 1951-04-24 | 0 | Details |
| US2536764A | Method of forming a reflection reducing coating | Expired / Lapsed | 1947-04-05 | 1951-01-02 | 1 | Details |
| US2531945A | Reflection reducing coatings having uniform reflection for … | Expired / Lapsed | 1947-04-05 | 1950-11-28 | 0 | Details |
| US2516905A | Microscope with variable polarizing and birefringent means … | Expired / Lapsed | 1946-07-02 | 1950-08-01 | 0 | Details |
| US2515830A | Apparatus for stretching sheet material | Expired / Lapsed | 1946-10-19 | 1950-07-18 | 0 | Details |
| US2507771A | Diagnostic instrument | Expired / Lapsed | 1946-01-11 | 1950-05-16 | 0 | Details |
| US2482698A | Optical lens means having a nonspherical refracting surface | Expired / Lapsed | 1945-02-15 | 1949-09-20 | 0 | Details |
| US2481567A | Instrument for hemoglobin determination having two filters … | Expired / Lapsed | 1945-12-26 | 1949-09-13 | 0 | Details |
| US2479541A | Apparatus for treating surfaces | Expired / Lapsed | 1943-08-30 | 1949-08-16 | 0 | Details |
| US2479540A | Method of coating by vacuum distillation | Expired / Lapsed | 1942-12-29 | 1949-08-16 | 0 | Details |
| US2474061A | Method of producing thin microporous silica coatings having… | Expired / Lapsed | 1943-07-23 | 1949-06-21 | 0 | Details |
| US2471879A | Vertical illuminator | Expired / Lapsed | 1946-02-08 | 1949-05-31 | 0 | Details |
| US2469929A | Apparatus for coating articles | Expired / Lapsed | 1943-09-24 | 1949-05-10 | 0 | Details |
| US2466119A | Reflection modifying coatings and articles so coated and me… | Expired / Lapsed | 1944-11-06 | 1949-04-05 | 0 | Details |
| US2465083A | Connecting parts of optical instruments | Expired / Lapsed | 1943-11-18 | 1949-03-22 | 0 | Details |
| US2463906A | Apparatus and method for making optical devices | Expired / Lapsed | 1944-04-20 | 1949-03-08 | 0 | Details |
| US2462005A | Face shield for use with respirators | Expired / Lapsed | 1947-09-27 | 1949-02-15 | 0 | Details |
| US2440187A | Refractory and method of making the same | Expired / Lapsed | 1943-01-16 | 1948-04-20 | 0 | Details |
| US2435997A | Apparatus for vapor coating of large surfaces | Expired / Lapsed | 1943-11-06 | 1948-02-17 | 0 | Details |
| US2432484A | Reflection reducing coating having a gradually increasing i… | Expired / Lapsed | 1943-03-12 | 1947-12-09 | 0 | Details |
| US2427689A | Microscope with special light modifiers | Expired / Lapsed | 1942-08-28 | 1947-09-23 | 0 | Details |
| US2414126A | Edging machine | Expired / Lapsed | 1945-05-21 | 1947-01-14 | 0 | Details |
| US2409853A | Optical instrument for examining polarized light | Expired / Lapsed | 1943-01-21 | 1946-10-22 | 0 | Details |
| US2408512A | Device for forming slits | Expired / Lapsed | 1942-12-30 | 1946-10-01 | 0 | Details |
| US2404770A | Optical scanning device and process of making articles ther… | Expired / Lapsed | 1943-08-19 | 1946-07-30 | 0 | Details |
| US2398708A | Process of making optical elements | Expired / Lapsed | 1941-09-13 | 1946-04-16 | 0 | Details |
| US2388302A | Removal of iron from ceramic raw materials | Expired / Lapsed | 1943-03-12 | 1945-11-06 | 0 | Details |
| US2388077A | Lens system | Expired / Lapsed | 1942-08-25 | 1945-10-30 | 0 | Details |
| US2380481A | Ophthalmic mounting | Expired / Lapsed | 1941-02-24 | 1945-07-31 | 0 | Details |
| US2378476A | Coating apparatus | Expired / Lapsed | 1943-02-11 | 1945-06-19 | 0 | Details |
| US2365083A | Gold-filled wire | Expired / Lapsed | 1941-02-08 | 1944-12-12 | 0 | Details |
| US2360185A | Process of manufacturing metal bar stock | Expired / Lapsed | 1941-02-08 | 1944-10-10 | 0 | Details |
| US2330249A | Ophthalmic mounting | Expired / Lapsed | 1942-06-15 | 1943-09-28 | 0 | Details |
| US2328708A | Ophthalmic mounting | Expired / Lapsed | 1940-07-05 | 1943-09-07 | 0 | Details |
| US2320375A | Ophthalmic mounting and method of making the same | Expired / Lapsed | 1939-07-18 | 1943-06-01 | 0 | Details |
| US2310925A | Process of making lenses | Expired / Lapsed | 1939-10-11 | 1943-02-16 | 0 | Details |
| US2284504A | Composite laminated plate stock | Expired / Lapsed | 1939-05-05 | 1942-05-26 | 0 | Details |
| US2280297A | Method of testing eyes | Expired / Lapsed | 1940-01-05 | 1942-04-21 | 0 | Details |
| US2268654A | Means for marking lenses and similar articles | Expired / Lapsed | 1939-06-20 | 1942-01-06 | 0 | Details |
| US2266798A | Apparatus for exercising and training eyes | Expired / Lapsed | 1939-09-05 | 1941-12-23 | 0 | Details |
| US2247628A | Ophthalmic lens | Expired / Lapsed | 1938-01-17 | 1941-07-01 | 0 | Details |
| US2241415A | Ophthalmic lens | Expired / Lapsed | 1937-08-02 | 1941-05-13 | 0 | Details |
| US2240157A | Ophthalmic lens | Expired / Lapsed | 1938-05-25 | 1941-04-29 | 0 | Details |
| US2127015A | Electromagnetic wave signaling system | Expired / Lapsed | 1934-04-13 | 1938-08-16 | 0 | Details |
| US2098702A | Diagnostic instrument | Expired / Lapsed | 1934-09-14 | 1937-11-09 | 0 | Details |
| US2092789A | Glass treatment | Expired / Lapsed | 1934-09-13 | 1937-09-14 | 0 | Details |
| US2083831A | Connecting means | Expired / Lapsed | 1934-03-02 | 1937-06-15 | 0 | Details |
| US1973966A | Eye testing device | Expired / Lapsed | 1929-11-16 | 1934-09-18 | 0 | Details |
| US1960121A | Glass treatment | Expired / Lapsed | 1930-02-10 | 1934-05-22 | 0 | Details |
| US1925577A | Oscillating crystal | Expired / Lapsed | 1930-10-17 | 1933-09-05 | 0 | Details |
| US1838134A | Aligning and assembling tool | Expired / Lapsed | 1930-09-04 | 1931-12-29 | 0 | Details |
| US1795296A | Stand for diagnostic instruments | Expired / Lapsed | 1924-07-21 | 1931-03-10 | 0 | Details |
| US1791604A | Diagnostic instrument | Expired / Lapsed | 1927-05-28 | 1931-02-10 | 0 | Details |
| US1722520A | Lens-seating device | Expired / Lapsed | 1925-11-11 | 1929-07-30 | 0 | Details |
| US1672573A | Grindstone mounting | Expired / Lapsed | 1923-11-14 | 1928-06-05 | 0 | Details |
| US1666746A | Bevel-edging machine | Expired / Lapsed | 1924-05-28 | 1928-04-17 | 0 | Details |
| US1662150A | Fused-quartz transilluminator | Expired / Lapsed | 1926-04-05 | 1928-03-13 | 0 | Details |
| US1651533A | Grinding stone | Expired / Lapsed | 1926-04-07 | 1927-12-06 | 0 | Details |
| US1644798A | Ophthalmic lens | Expired / Lapsed | 1925-08-26 | 1927-10-11 | 0 | Details |
| US1639012A | Surfacing machine | Expired / Lapsed | 1924-12-03 | 1927-08-16 | 0 | Details |
| US1638078A | Tool for widening and narrowing bridges of ophthalmic mount… | Expired / Lapsed | 1926-05-20 | 1927-08-09 | 0 | Details |
| US1637029A | Composition rim for ophthalmic mountings | Expired / Lapsed | 1925-05-28 | 1927-07-26 | 0 | Details |
| US1622776A | Lens-testing instrument | Expired / Lapsed | 1924-09-13 | 1927-03-29 | 0 | Details |
| US1613202A | Ophthalmic mounting | Expired / Lapsed | 1922-02-11 | 1927-01-04 | 0 | Details |
| US1571067A | Demiamber rim and process for production of same | Expired / Lapsed | 1925-01-24 | 1926-01-26 | 0 | Details |
| US1510001A | Ophthalmic mounting | Expired / Lapsed | 1922-03-03 | 1924-09-30 | 0 | Details |
| US1507327A | Process of coating edges of lenses | Expired / Lapsed | 1922-08-11 | 1924-09-02 | 0 | Details |
| US1473359A | Case | Expired / Lapsed | 1921-07-05 | 1923-11-06 | 0 | Details |
| US1461071A | Ophthalmic mounting | Expired / Lapsed | 1922-01-19 | 1923-07-10 | 0 | Details |
| US1442015A | Gun sight | Expired / Lapsed | 1919-07-08 | 1923-01-09 | 0 | Details |
| US1269680A | Edging-machine. | Expired / Lapsed | 1915-11-05 | 1918-06-18 | 0 | Details |
| US1269422A | Lens. | Expired / Lapsed | 1917-11-24 | 1918-06-11 | 0 | Details |
| US1267014A | Lens. | Expired / Lapsed | 1916-11-29 | 1918-05-21 | 0 | Details |
| US1248593A | Process of manufacturing spectacle-temples. | Expired / Lapsed | 1917-09-13 | 1917-12-04 | 0 | Details |
| US1241612A | Lens-testing instrument. | Expired / Lapsed | 1913-05-31 | 1917-10-02 | 0 | Details |
| US1156389A | Goggles. | Expired / Lapsed | 1915-07-09 | 1915-10-12 | 0 | Details |