United States Department of the Army
United StaActive Patents
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Total Holdings
260
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US20030076485A1 | Ladar system for detecting objects | Expired / Lapsed | 2002-06-28 | — | 28 | Details |
| USD432507S | Computer-generated image for a computer monitor | Expired / Lapsed | 1997-11-05 | 2000-10-24 | 1 | Details |
| USD418495S | Computer/generated image for a computer monitor | Expired / Lapsed | 1997-11-05 | 2000-01-04 | 1 | Details |
| US5853005A | Acoustic monitoring system | Expired / Lapsed | 1996-05-02 | 1998-12-29 | 124 | Details |
| US5640042A | Thin film ferroelectric varactor | Expired / Lapsed | 1995-12-14 | 1997-06-17 | 11 | Details |
| US5399158A | Method of lysing thrombi | Expired / Lapsed | 1993-01-27 | 1995-03-21 | 24 | Details |
| US5355506A | Communication method for controlling and monitoring robotic… | Expired / Lapsed | 1991-04-29 | 1994-10-11 | 2 | Details |
| US5301009A | Frustrated total internal reflection optical power limiter | Expired / Lapsed | 1983-04-28 | 1994-04-05 | 8 | Details |
| US5164948A | Stabilized local oscillator frequency for heterodyne laser … | Expired / Lapsed | 1991-01-03 | 1992-11-17 | 3 | Details |
| US5094004A | Railroad track gager/leveler/linear measurer | Expired / Lapsed | 1991-06-21 | 1992-03-10 | 8 | Details |
| US5072111A | Optical time domain reflectometer calibration system | Expired / Lapsed | 1990-09-04 | 1991-12-10 | 5 | Details |
| US5053088A | Heat-expandable beads as burning rate accelerators | Expired / Lapsed | 1982-05-05 | 1991-10-01 | 6 | Details |
| US4960467A | Dermal substance collection device | Expired / Lapsed | 1988-12-12 | 1990-10-02 | 14 | Details |
| US4884896A | Production line emissivity measurement system | Expired / Lapsed | 1989-01-13 | 1989-12-05 | 14 | Details |
| US4883769A | Method of making a multidimensional quantum-well array | Expired / Lapsed | 1988-08-18 | 1989-11-28 | 8 | Details |
| US4777825A | Stabilized reference surface for laser vibration sensors | Expired / Lapsed | 1987-07-15 | 1988-10-18 | 2 | Details |
| US4736150A | Method of increasing the useful life of rechargeable lithiu… | Expired / Lapsed | 1986-07-09 | 1988-04-05 | 14 | Details |
| US4721362A | Phase gradient contrast microscope | Expired / Lapsed | 1985-05-31 | 1988-01-26 | 14 | Details |
| US4716444A | Optical radar transceiver control apparatus | Expired / Lapsed | 1985-08-01 | 1987-12-29 | 3 | Details |
| US4679959A | Quick-connect/disconnect connector | Expired / Lapsed | 1986-10-16 | 1987-07-14 | 8 | Details |
| US4652885A | Dual mode antenna for millimeter wave and infrared radiation | Expired / Lapsed | 1985-03-04 | 1987-03-24 | 9 | Details |
| US4647863A | Saw transition detector for PSK signals | Expired / Lapsed | 1985-11-01 | 1987-03-03 | 10 | Details |
| US4642651A | Dual lens antenna with mechanical and electrical beam scann… | Expired / Lapsed | 1984-09-24 | 1987-02-10 | 2 | Details |
| US4637931A | Polyactic-polyglycolic acid copolymer combined with decalci… | Expired / Lapsed | 1984-10-09 | 1987-01-20 | 21 | Details |
| US4636797A | Dual mode dichroic antenna/aperture | Expired / Lapsed | 1985-03-04 | 1987-01-13 | 7 | Details |
| US4621646A | Blood flow measuring method | Expired / Lapsed | 1983-12-15 | 1986-11-11 | 3 | Details |
| US4620095A | Ion neutralization resonance emission elemental detector | Expired / Lapsed | 1984-01-18 | 1986-10-28 | 18 | Details |
| US4595287A | Doppler effect laser velocity measuring system | Expired / Lapsed | 1984-01-18 | 1986-06-17 | 7 | Details |
| US4580567A | Suture needle holder | Expired / Lapsed | 1985-06-03 | 1986-04-08 | 5 | Details |
| US4580447A | Function test equipment for smoke and gas munitions | Expired / Lapsed | 1984-04-13 | 1986-04-08 | 4 | Details |
| US4572662A | Wire and wire like object detection system | Expired / Lapsed | 1982-11-05 | 1986-02-25 | 7 | Details |
| US4568972A | Instrument monitoring assembly | Expired / Lapsed | 1983-11-17 | 1986-02-04 | 6 | Details |
| US4549293A | Time division multiple access communications system | Expired / Lapsed | 1983-12-29 | 1985-10-22 | 14 | Details |
| US4547748A | Frequency synthesizer using a matrix of selectable piezoele… | Expired / Lapsed | 1984-08-13 | 1985-10-15 | 9 | Details |
| US4517486A | Monolitic band-pass filter using piezoelectric cantilevers | Expired / Lapsed | 1984-02-21 | 1985-05-14 | 4 | Details |
| US4466408A | Apparatus for closed-loop combustion control in internal co… | Expired / Lapsed | 1983-03-10 | 1984-08-21 | 5 | Details |
| US4460992A | Orthogonal CDMA system utilizing direct sequence pseudo noi… | Expired / Lapsed | 1982-11-04 | 1984-07-17 | 8 | Details |
| US4457173A | Multifunction sensor using thin film transistor transducers | Expired / Lapsed | 1982-05-03 | 1984-07-03 | 6 | Details |
| US4445028A | Unidirectional code for interactive map system | Expired / Lapsed | 1982-06-10 | 1984-04-24 | 12 | Details |
| US4445141A | Hybrid optical/digital image processor | Expired / Lapsed | 1980-02-04 | 1984-04-24 | 33 | Details |
| US4423768A | Piezoelectric polymer heat exchanger | Expired / Lapsed | 1982-04-20 | 1984-01-03 | 6 | Details |
| US4397549A | Method for removal of LIDAR background backscattering by su… | Expired / Lapsed | 1981-03-27 | 1983-08-09 | 12 | Details |
| US4395062A | Cover hold down mechanism | Expired / Lapsed | 1980-10-02 | 1983-07-26 | 2 | Details |
| US4393048A | Protective gel composition for wounds | Expired / Lapsed | 1981-10-30 | 1983-07-12 | 15 | Details |
| US4391799A | Protective gel composition for treating white phosphorus bu… | Expired / Lapsed | 1981-10-30 | 1983-07-05 | 5 | Details |
| US4389649A | Dual channel correlator for an FM-CW ranging radar | Expired / Lapsed | 1980-10-14 | 1983-06-21 | 18 | Details |
| US4383548A | Evacuating-charging valve assembly | Expired / Lapsed | 1981-12-30 | 1983-05-17 | 2 | Details |
| US4361384A | High luminance miniature display | Expired / Lapsed | 1980-06-27 | 1982-11-30 | 4 | Details |
| US4347730A | Method and apparatus for calibrating gyroscopically-stabili… | Expired / Lapsed | 1980-02-19 | 1982-09-07 | 29 | Details |
| US4304840A | Method of delineating a desired integrated circuit pattern … | Expired / Lapsed | 1980-05-22 | 1981-12-08 | 11 | Details |
| US4304185A | Liner-barrier for ultrahigh burning rate propellants | Expired / Lapsed | 1977-09-06 | 1981-12-08 | 2 | Details |
| US4293953A | Bi-orthogonal PCM communications system employing multiplex… | Expired / Lapsed | 1979-12-28 | 1981-10-06 | 10 | Details |
| US4289966A | Radiation energy detector and analyzer | Expired / Lapsed | 1980-04-10 | 1981-09-15 | 12 | Details |
| US4287588A | Multiple access, time-division multiplex, satellite communi… | Expired / Lapsed | 1979-04-12 | 1981-09-01 | 10 | Details |
| US4271413A | Null mask | Expired / Lapsed | 1979-06-12 | 1981-06-02 | 4 | Details |
| US4263655A | Digital interface circuit for control of pressure scanner | Expired / Lapsed | 1979-07-26 | 1981-04-21 | 13 | Details |
| US4253192A | Telemetric system | Expired / Lapsed | 1979-02-05 | 1981-02-24 | 19 | Details |
| US4252406A | Connector for optical fibers | Expired / Lapsed | 1978-09-05 | 1981-02-24 | 10 | Details |
| US4241117A | Structural cores and their fabrication | Expired / Lapsed | 1979-06-14 | 1980-12-23 | 16 | Details |
| US4227907A | Laser photochemical synthesis coating of optical fiber | Expired / Lapsed | 1979-10-22 | 1980-10-14 | 3 | Details |
| US4228397A | Electronic velocimeter having an oscillator coupled coil fo… | Expired / Lapsed | 1978-11-13 | 1980-10-14 | 11 | Details |
| US4219812A | Range-gated pulse doppler radar system | Expired / Lapsed | 1978-12-26 | 1980-08-26 | 8 | Details |
| US4219786A | Polarization suppression of parasitic modes | Expired / Lapsed | 1978-12-11 | 1980-08-26 | 7 | Details |
| US4213093A | Portable buried object detection system with error reducing… | Expired / Lapsed | 1978-07-10 | 1980-07-15 | 5 | Details |
| US4201822A | Novel fabric containing microcapsules of chemical decontami… | Expired / Lapsed | 1979-06-13 | 1980-05-06 | 11 | Details |
| US4195931A | Clear air turbulence detector | Expired / Lapsed | 1978-05-18 | 1980-04-01 | 12 | Details |
| US4186183A | Liposome carriers in chemotherapy of leishmaniasis | Expired / Lapsed | 1978-03-29 | 1980-01-29 | 20 | Details |
| US4184117A | Communication security method and system | Expired / Lapsed | 1956-04-16 | 1980-01-15 | 10 | Details |
| US4182933A | Secure communication system with remote key setting | Expired / Lapsed | 1969-02-14 | 1980-01-08 | 11 | Details |
| US4173455A | Fire-safe hydrocarbon fuels | Expired / Lapsed | 1978-10-11 | 1979-11-06 | 18 | Details |
| US4172410A | Helical lock for automatic gun | Expired / Lapsed | 1978-01-23 | 1979-10-30 | 4 | Details |
| US4162500A | Ridged waveguide antenna submerged in dielectric liquid | Expired / Lapsed | 1978-03-29 | 1979-07-24 | 10 | Details |
| US4160415A | Target activated projectile | Expired / Lapsed | 1978-05-05 | 1979-07-10 | 8 | Details |
| US4156135A | Electronic heterodyning in an optical detector | Expired / Lapsed | 1976-11-11 | 1979-05-22 | 7 | Details |
| US4154089A | Apparatus and method for measuring liquid water content of … | Expired / Lapsed | 1978-06-12 | 1979-05-15 | 14 | Details |
| US4148005A | Thermometric transducer device | Expired / Lapsed | 1977-10-14 | 1979-04-03 | 14 | Details |
| US4146298A | Coupler for optical fiber waveguides and method of construc… | Expired / Lapsed | 1977-03-01 | 1979-03-27 | 13 | Details |
| US4145142A | Apparatus for and method of testing direct-view image inten… | Expired / Lapsed | 1977-11-28 | 1979-03-20 | 6 | Details |
| US4144591A | Memory transistor | Expired / Lapsed | 1978-04-05 | 1979-03-13 | 10 | Details |
| US4138512A | Process for chemical vapor deposition of a homogeneous allo… | Expired / Lapsed | 1977-10-17 | 1979-02-06 | 4 | Details |
| US4138196A | Fiber interferometer rotary motion sensor | Expired / Lapsed | 1977-07-06 | 1979-02-06 | 11 | Details |
| US4138684A | Loaded microstrip antenna with integral transformer | Expired / Lapsed | 1977-05-12 | 1979-02-06 | 11 | Details |
| US4133612A | Endless fiber interferometer rotary motion sensor | Expired / Lapsed | 1977-07-06 | 1979-01-09 | 11 | Details |
| US4133706A | Propellants containing carboranylmethyl alkyl sulfide plast… | Expired / Lapsed | 1972-10-03 | 1979-01-09 | 11 | Details |
| US4132740A | Preparation of carboranyl sulfides | Expired / Lapsed | 1972-10-03 | 1979-01-02 | 8 | Details |
| US4124280A | Acoustic-optic technique for processing many signals simult… | Expired / Lapsed | 1977-06-07 | 1978-11-07 | 4 | Details |
| US4123165A | Attitude determination using two color, dual-sweeping laser… | Expired / Lapsed | 1977-05-31 | 1978-10-31 | 8 | Details |
| US4119913A | Projectile in-bore memory system | Expired / Lapsed | 1977-07-20 | 1978-10-10 | 5 | Details |
| US4110016A | Acousto-optic real time correlator | Expired / Lapsed | 1977-06-07 | 1978-08-29 | 6 | Details |
| US4108359A | Apparatus for verifying the execution of a sequence of code… | Expired / Lapsed | 1977-03-30 | 1978-08-22 | 10 | Details |
| US4100672A | Method of preparation of SOS extrinsic infrared detector an… | Expired / Lapsed | 1977-08-03 | 1978-07-18 | 7 | Details |
| US4091412A | Target designation system | Expired / Lapsed | 1972-12-29 | 1978-05-23 | 2 | Details |
| US4087695A | Method for producing optical baffling material using pulsed… | Expired / Lapsed | 1977-01-17 | 1978-05-02 | 12 | Details |
| US4085440A | Inertial navigation system | Expired / Lapsed | 1977-05-05 | 1978-04-18 | 12 | Details |
| US4069701A | Portable agent generator | Expired / Lapsed | 1976-09-07 | 1978-01-24 | 13 | Details |
| US4065998A | Gun lock and firing mechanism for 30mm cannon | Expired / Lapsed | 1976-06-30 | 1978-01-03 | 17 | Details |
| US4065211A | Precision X-ray diffraction system incorporating a laser al… | Expired / Lapsed | 1976-03-01 | 1977-12-27 | 4 | Details |
| US4064440A | X-ray or gamma-ray examination device for moving objects | Expired / Lapsed | 1976-06-22 | 1977-12-20 | 14 | Details |
| US4053920A | Step graded photocathode | Expired / Lapsed | 1976-12-21 | 1977-10-11 | 3 | Details |
| US4053929A | Contour fitting pictorial tracking gate | Expired / Lapsed | 1969-04-07 | 1977-10-11 | 11 | Details |
| US4039958A | Circuits for decoding pulse signals | Expired / Lapsed | 1977-01-03 | 1977-08-02 | 11 | Details |
| US4034675A | Catalysts - containing ablative resonance suppressors | Expired / Lapsed | 1970-08-20 | 1977-07-12 | 10 | Details |
| US4033720A | Unitary sampling and analysis strip and process | Expired / Lapsed | 1974-05-31 | 1977-07-05 | 2 | Details |
| US4027384A | Microwave absorbers | Expired / Lapsed | 1976-11-19 | 1977-06-07 | 5 | Details |
| US4028673A | Crosswind measurements through pattern recognition techniqu… | Expired / Lapsed | 1975-10-31 | 1977-06-07 | 7 | Details |
| US4027264A | Phase lock loop multitone interference canceling system | Expired / Lapsed | 1976-02-24 | 1977-05-31 | 8 | Details |
| US4026641A | Toric reflector display | Expired / Lapsed | 1975-12-30 | 1977-05-31 | 11 | Details |
| US4016413A | Optoelectronic means for one-dimensional integral transform… | Expired / Lapsed | 1975-12-04 | 1977-04-05 | 21 | Details |
| US4013950A | Apparatus for measuring the electromagnetic impedance of so… | Expired / Lapsed | 1976-04-12 | 1977-03-22 | 11 | Details |
| US4003655A | Hybrid silicon avalanche quadrant detector | Expired / Lapsed | 1975-04-17 | 1977-01-18 | 8 | Details |
| US3996599A | Image detector with background suppression | Expired / Lapsed | 1975-03-19 | 1976-12-07 | 6 | Details |
| US3989384A | System for measuring small angular motions | Expired / Lapsed | 1975-05-30 | 1976-11-02 | 11 | Details |
| US3983558A | Moving target indicating (MTI) radar systems employing vehi… | Expired / Lapsed | 1974-06-28 | 1976-09-28 | 17 | Details |
| US3979755A | Rotating lens antenna seeker-head | Expired / Lapsed | 1974-12-17 | 1976-09-07 | 6 | Details |
| US3975698A | Fiber acoustic waveguide and system | Expired / Lapsed | 1975-12-15 | 1976-08-17 | 28 | Details |
| US3975141A | Combustion liner swirler | Expired / Lapsed | 1974-06-25 | 1976-08-17 | 2 | Details |
| US3971024A | Protective metal shield for plastic fuze radomes | Expired / Lapsed | 1973-05-29 | 1976-07-20 | 8 | Details |
| US3962657A | Broadband data modulation system | Expired / Lapsed | 1974-10-22 | 1976-06-08 | 11 | Details |
| US3961851A | Passive stereovision range finder | Expired / Lapsed | 1974-10-03 | 1976-06-08 | 2 | Details |
| US3959641A | Digital rangefinder correlation | Expired / Lapsed | 1974-12-05 | 1976-05-25 | 6 | Details |
| US3946392A | Electrically short transmission line antenna | Expired / Lapsed | 1975-02-19 | 1976-03-23 | 17 | Details |
| US3946416A | Low impedance diode mounting structure and housing | Expired / Lapsed | 1974-06-04 | 1976-03-23 | 6 | Details |
| US3937880A | Magnetic disc coder-decoder | Expired / Lapsed | 1957-12-05 | 1976-02-10 | 11 | Details |
| US3935818A | Combined fuze and guidance system for a missile | Expired / Lapsed | 1974-08-26 | 1976-02-03 | 5 | Details |
| US3925782A | Adaptive RF power output control for net radios | Expired / Lapsed | 1975-02-28 | 1975-12-09 | 12 | Details |
| US3914446A | Method of producing freeze-dried bacon slices | Expired / Lapsed | 1974-08-21 | 1975-10-21 | 3 | Details |
| US3911433A | Infrared microwave transponder | Expired / Lapsed | 1974-07-12 | 1975-10-07 | 10 | Details |
| US3898353A | Self aligned drain and gate field effect transistor | Expired / Lapsed | 1974-10-03 | 1975-08-05 | 2 | Details |
| US3898446A | Quadratic phase memory | Expired / Lapsed | 1974-09-06 | 1975-08-05 | 8 | Details |
| US3890699A | Method of making an ohmic contact to a semiconductor materi… | Expired / Lapsed | 1974-06-04 | 1975-06-24 | 3 | Details |
| US3889199A | Method and apparatus for adaptively suppressing unwanted lo… | Expired / Lapsed | 1974-05-22 | 1975-06-10 | 12 | Details |
| US3877874A | Method for detection and droplet measurement of S-(2-diisop… | Expired / Lapsed | 1969-10-17 | 1975-04-15 | 4 | Details |
| US3866143A | Quasi-optical integrated circuits | Expired / Lapsed | 1973-09-13 | 1975-02-11 | 12 | Details |
| US3853402A | Digital gated depth of field intensity equalizer | Expired / Lapsed | 1974-02-01 | 1974-12-10 | 8 | Details |
| US3853828A | Process for crosslinking fluorocarbon polymers | Expired / Lapsed | 1973-11-21 | 1974-12-10 | 14 | Details |
| US3829303A | Dielectric properties of inorganic oxide glass-ceramic mate… | Expired / Lapsed | 1973-10-25 | 1974-08-13 | 0 | Details |
| US3813553A | Laser transciever | Expired / Lapsed | 1973-05-17 | 1974-05-28 | 11 | Details |
| US3812483A | Point source discriminator thermal alarm | Expired / Lapsed | 1972-05-26 | 1974-05-21 | 11 | Details |
| US3805137A | Sampled signal servo control system | Expired / Lapsed | 1972-11-21 | 1974-04-16 | 3 | Details |
| US3803409A | Coaxial diode mount for use with fiber optic light guide | Expired / Lapsed | 1972-07-14 | 1974-04-09 | 9 | Details |
| US3802780A | Optical device for position location | Expired / Lapsed | 1972-06-12 | 1974-04-09 | 11 | Details |
| US3798762A | Circuit board processing | Expired / Lapsed | 1972-08-14 | 1974-03-26 | 9 | Details |
| US3792916A | Anti-laser optical filter assembly | Expired / Lapsed | 1969-02-25 | 1974-02-19 | 3 | Details |
| US3790881A | Pulse width selector | Expired / Lapsed | 1973-03-06 | 1974-02-05 | 10 | Details |
| US3780585A | Cryogen temperature indicator | Expired / Lapsed | 1972-01-12 | 1973-12-25 | 2 | Details |
| US3771377A | Vee-belt spring-o-matic power transmission | Expired / Lapsed | 1971-09-21 | 1973-11-13 | 12 | Details |
| US3772658A | Electronic memory having a page swapping capability | Expired / Lapsed | 1971-02-05 | 1973-11-13 | 2 | Details |
| US3768100A | Cold weather face mask | Expired / Lapsed | 1972-05-23 | 1973-10-30 | 5 | Details |
| US3768976A | Temperature-time integrating indicator | Expired / Lapsed | 1971-05-20 | 1973-10-30 | 8 | Details |
| US3767480A | Titanium beta s-alloy | Expired / Lapsed | 1971-10-27 | 1973-10-23 | 1 | Details |
| US3757806A | Pulsating hydrojet lavage device | Expired / Lapsed | 1972-01-19 | 1973-09-11 | 44 | Details |
| US3757933A | Container for packaging a plurality of explosive units so a… | Expired / Lapsed | 1971-04-27 | 1973-09-11 | 5 | Details |
| US3757259A | Novel mounting technique for glass package diodes | Expired / Lapsed | 1972-04-28 | 1973-09-04 | 2 | Details |
| US3756068A | Carbon dioxide concentration sensor | Expired / Lapsed | 1971-04-30 | 1973-09-04 | 8 | Details |
| US3750644A | Cardiac programmer for a coronary blood pump | Expired / Lapsed | 1971-09-09 | 1973-08-07 | 10 | Details |
| US3751166A | Command guidance transmitter system | Expired / Lapsed | 1971-06-03 | 1973-08-07 | 2 | Details |
| US3746905A | High vacuum, field effect electron tube | Expired / Lapsed | 1971-12-21 | 1973-07-17 | 2 | Details |
| US3745463A | Coded equalizer | Expired / Lapsed | 1971-07-08 | 1973-07-10 | 7 | Details |
| US3743216A | Homing missile system using laser illuminator | Expired / Lapsed | 1969-01-09 | 1973-07-03 | 3 | Details |
| US3732776A | Blank firing attachment | Expired / Lapsed | 1971-09-17 | 1973-05-15 | 10 | Details |
| US3718044A | Flow meter for indirectly measuring the flow of blood from … | Expired / Lapsed | 1971-12-07 | 1973-02-27 | 0 | Details |
| US3718873A | Phase shifter having at least one t-section lc circuit | Expired / Lapsed | 1971-06-28 | 1973-02-27 | 0 | Details |
| US3718932A | Combined multi-polarization loopstick and whip antenna | Expired / Lapsed | 1971-06-01 | 1973-02-27 | 0 | Details |
| US3718293A | Dynamic lead guidance system for homing navigation | Expired / Lapsed | 1971-01-04 | 1973-02-27 | 0 | Details |
| US3715953A | Aerial surveillance and fire-control system | Expired / Lapsed | 1966-02-04 | 1973-02-13 | 8 | Details |
| US3715692A | Microstrip-slot line phase shifter | Expired / Lapsed | 1972-01-10 | 1973-02-06 | 10 | Details |
| US3715231A | Storage of liquid hydrazine rocket fuels | Expired / Lapsed | 1971-05-28 | 1973-02-06 | 12 | Details |
| US3705523A | Hybrid routing technique for switching communication network | Expired / Lapsed | 1970-09-21 | 1972-12-12 | 32 | Details |
| US3694677A | Vhf-uhf piezoelectric resonators | Expired / Lapsed | 1971-03-03 | 1972-09-26 | 3 | Details |
| US3690323A | Device for draining ventricular fluid in cases of hydroceph… | Expired / Lapsed | 1970-12-01 | 1972-09-12 | 12 | Details |
| US3687519A | Semi-micro absolute transmittance and specular reflectance … | Expired / Lapsed | 1971-02-24 | 1972-08-29 | 6 | Details |
| US3675327A | Filled cold-curing acrylic resin as a splinting material | Expired / Lapsed | 1970-01-13 | 1972-07-11 | 5 | Details |
| US3672218A | System for measuring temperature of a cryogenic environment | Expired / Lapsed | 1971-01-26 | 1972-06-27 | 3 | Details |
| US3657059A | Quasi-isotropic sandwich core | Expired / Lapsed | 1970-05-20 | 1972-04-18 | 8 | Details |
| US3657534A | Digital scale for tomography and method of using same | Expired / Lapsed | 1970-03-12 | 1972-04-18 | 8 | Details |
| US3654553A | Remotely sensing optical tachometer | Expired / Lapsed | 1970-07-01 | 1972-04-04 | 13 | Details |
| US3645833A | Article and method of quasi-isotropic core filaments | Expired / Lapsed | 1970-05-20 | 1972-02-29 | 9 | Details |
| US3646446A | Binary information receiver for detecting a phase modulated… | Expired / Lapsed | 1969-11-12 | 1972-02-29 | 6 | Details |
| US3646554A | Video pulse converter for the track signal processor | Expired / Lapsed | 1966-05-19 | 1972-02-29 | 8 | Details |
| US3634860A | Doppler radar with target velocity direction and range indi… | Expired / Lapsed | 1970-01-21 | 1972-01-11 | 5 | Details |
| US3629602A | Parametric optical system | Expired / Lapsed | 1970-05-15 | 1971-12-21 | 11 | Details |
| US3604142A | Four-stack cartridge magazine | Expired / Lapsed | 1969-06-30 | 1971-09-14 | 8 | Details |
| US3588848A | Input-output control circuit for memory circuit | Expired / Lapsed | 1969-08-04 | 1971-06-28 | 0 | Details |
| US3579641A | End clip for load carrying belt | Expired / Lapsed | 1969-10-09 | 1971-05-25 | 0 | Details |
| US3579810A | Method of making capillary assemblies for oxygenators and t… | Expired / Lapsed | 1969-06-13 | 1971-05-25 | 7 | Details |
| US3566368A | Delta clock and interrupt logic | Expired / Lapsed | 1969-04-22 | 1971-02-23 | 0 | Details |
| US3562599A | Cycling delay circuit testing device | Expired / Lapsed | 1968-12-13 | 1971-02-09 | 6 | Details |
| US3548709A | Firing mechanism for automatic grenade launcher | Expired / Lapsed | 1968-12-27 | 1970-12-22 | 0 | Details |
| US3548212A | Multibeam laser tracking system | Expired / Lapsed | 1968-07-17 | 1970-12-15 | 0 | Details |
| US3537101A | High speed analog-to-digital encoder | Expired / Lapsed | 1967-01-04 | 1970-10-27 | 0 | Details |
| US3535686A | Ceramic memory system | Expired / Lapsed | 1967-12-13 | 1970-10-20 | 0 | Details |
| US3528922A | Novel surfactant combination in a solvent degreasing self-e… | Expired / Lapsed | 1967-07-27 | 1970-09-15 | 0 | Details |
| US3523718A | Low temperature optical isolator for laser systems | Expired / Lapsed | 1968-04-17 | 1970-08-11 | 0 | Details |
| US3523732A | Active optical ranging device producing multiple source ima… | Expired / Lapsed | 1967-03-07 | 1970-08-11 | 0 | Details |
| US3523731A | Optical ranging device (u) | Expired / Lapsed | 1967-01-04 | 1970-08-11 | 0 | Details |
| US3520194A | Calibration method and apparatus for a physiologic evaporat… | Expired / Lapsed | 1967-03-14 | 1970-07-14 | 0 | Details |
| US3515993A | Quadruple-balance mixer | Expired / Lapsed | 1967-10-24 | 1970-06-02 | 0 | Details |
| US3512888A | Optical ranging systems | Expired / Lapsed | 1965-03-29 | 1970-05-19 | 0 | Details |
| US3509337A | Test object and cassette for tomography | Expired / Lapsed | 1967-11-30 | 1970-04-28 | 0 | Details |
| US3508254A | Accelerometer system | Expired / Lapsed | 1967-04-26 | 1970-04-21 | 0 | Details |
| US3504542A | Air flowmeter | Expired / Lapsed | 1967-08-21 | 1970-04-07 | 0 | Details |
| US3500102A | Thin electron tube with electron emitters at intersections … | Expired / Lapsed | 1967-05-15 | 1970-03-10 | 0 | Details |
| US3493939A | Priority sequencing device | Expired / Lapsed | 1967-04-10 | 1970-02-03 | 0 | Details |
| US3489579A | Ablative heat shielding and injection cooling by addition o… | Expired / Lapsed | 1966-05-25 | 1970-01-13 | 0 | Details |
| US3487259A | Low light level camera tube | Expired / Lapsed | 1968-02-21 | 1969-12-30 | 0 | Details |
| US3483613A | Method of making variable reluctance position transducer | Expired / Lapsed | 1966-04-08 | 1969-12-16 | 0 | Details |
| US3484211A | Membrane oxygenator | Expired / Lapsed | 1964-12-08 | 1969-12-16 | 0 | Details |
| US3482475A | Recess deburring tool | Expired / Lapsed | 1967-12-29 | 1969-12-09 | 0 | Details |
| US3482248A | Multifrequency common aperture manifold antenna | Expired / Lapsed | 1967-07-31 | 1969-12-02 | 0 | Details |
| US3480953A | Moving target indicator having staggered pulse repetition f… | Expired / Lapsed | 1968-05-17 | 1969-11-25 | 0 | Details |
| US3478604A | Electronic solid-state accelerometer | Expired / Lapsed | 1968-05-17 | 1969-11-18 | 0 | Details |
| US3465253A | Pulsed and continuous wave electromagnetic signal detectors | Expired / Lapsed | 1967-02-09 | 1969-09-02 | 0 | Details |
| US3465159A | Light amplifying device | Expired / Lapsed | 1966-06-27 | 1969-09-02 | 0 | Details |
| US3460137A | Track initiation system | Expired / Lapsed | 1965-05-24 | 1969-08-05 | 2 | Details |
| US3458805A | Electric field meter having a pair of rotating electrodes f… | Expired / Lapsed | 1965-11-04 | 1969-07-29 | 0 | Details |
| US3443246A | Multivibrator enabling circuit | Expired / Lapsed | 1967-10-02 | 1969-05-06 | 0 | Details |
| US3443108A | Dual beam scanning apparatus having dual beams scanning dua… | Expired / Lapsed | 1966-10-31 | 1969-05-06 | 0 | Details |
| US3440292A | Hydroxymethyl-terminated polymers | Expired / Lapsed | 1963-12-23 | 1969-04-22 | 2 | Details |
| US3433158A | Solid propellant grain with surface bonded burning inhibito… | Expired / Lapsed | 1966-02-10 | 1969-03-18 | 0 | Details |
| US3430240A | Frequency modulated pulse transmission and reception device… | Expired / Lapsed | 1961-07-05 | 1969-02-25 | 2 | Details |
| US3422430A | Doppler radar with target velocity direction indicator | Expired / Lapsed | 1968-01-04 | 1969-01-14 | 0 | Details |
| US3411046A | Electronic combination lock system | Expired / Lapsed | 1966-06-06 | 1968-11-12 | 1 | Details |
| US3399404A | Target detector for acquisition radar | Expired / Lapsed | 1966-02-23 | 1968-08-27 | 0 | Details |
| US3399401A | Digital computer and graphic input system | Expired / Lapsed | 1964-06-29 | 1968-08-27 | 0 | Details |
| US3397732A | Method for spray forming of tubular bodies | Expired / Lapsed | 1966-01-03 | 1968-08-20 | 0 | Details |
| US3396392A | Cw radar system | Expired / Lapsed | 1962-04-05 | 1968-08-06 | 2 | Details |
| US3391279A | Laser total energy detector | Expired / Lapsed | 1967-11-28 | 1968-07-02 | 0 | Details |
| US3383987A | Multiple-scale reticle for a fire control system with means… | Expired / Lapsed | 1967-03-27 | 1968-05-21 | 0 | Details |
| US3384890A | Variable aperture variable polarization high gain antenna s… | Expired / Lapsed | 1965-10-07 | 1968-05-21 | 0 | Details |
| US3378703A | Temperature compensated digital timer for precisely control… | Expired / Lapsed | 1964-07-06 | 1968-04-16 | 0 | Details |
| US3374481A | Digital target generator test set | Expired / Lapsed | 1966-11-09 | 1968-03-19 | 0 | Details |
| US3373741A | Plastic splint | Expired / Lapsed | 1965-03-19 | 1968-03-19 | 0 | Details |
| US3369182A | Transmission of analog signals by sampling at amplitude ext… | Expired / Lapsed | 1964-07-02 | 1968-02-13 | 0 | Details |
| US3365975A | Joy stick mechanism | Expired / Lapsed | 1965-12-10 | 1968-01-30 | 0 | Details |
| US3366058A | Ignition device for liquid primers | Expired / Lapsed | 1965-10-19 | 1968-01-30 | 0 | Details |
| US3366346A | Remote missile command system | Expired / Lapsed | 1965-07-19 | 1968-01-30 | 2 | Details |
| US3363248A | Chirp radar technique for suppressing second time around ec… | Expired / Lapsed | 1966-02-17 | 1968-01-09 | 0 | Details |
| US2689876A | Solid ion electrolyte battery | Expired / Lapsed | 1953-06-19 | 1954-09-21 | 2 | Details |
| US2685200A | Electromagnetic weighing device | Expired / Lapsed | 1952-03-27 | 1954-08-03 | 0 | Details |
| US2684990A | Battery design for guided missiles | Expired / Lapsed | 1953-02-16 | 1954-07-27 | 0 | Details |
| US2685084A | Digital decoder | Expired / Lapsed | 1951-04-03 | 1954-07-27 | 0 | Details |
| US2685054A | System for converting electrical code into shaft rotation | Expired / Lapsed | 1951-04-03 | 1954-07-27 | 0 | Details |
| US2684474A | Meteorological telemetering system | Expired / Lapsed | 1951-04-20 | 1954-07-20 | 0 | Details |
| US2683667A | Heat insulating coating | Expired / Lapsed | 1952-04-28 | 1954-07-13 | 2 | Details |
| US2683256A | Magnetron amplifier | Expired / Lapsed | 1952-04-07 | 1954-07-06 | 0 | Details |
| US2682045A | Electrical means for converting coordinates | Expired / Lapsed | 1952-05-28 | 1954-06-22 | 0 | Details |
| US2681764A | Hyperbolic analogue computer | Expired / Lapsed | 1952-03-06 | 1954-06-22 | 0 | Details |
| US2681563A | Apparatus for obtaining interior ballistics data | Expired / Lapsed | 1950-12-11 | 1954-06-22 | 0 | Details |
| US2680810A | Microwave antenna system | Expired / Lapsed | 1952-02-12 | 1954-06-08 | 0 | Details |
| US2680063A | Chemical heating composition | Expired / Lapsed | 1952-01-21 | 1954-06-01 | 2 | Details |
| US2679644A | Data encoder system | Expired / Lapsed | 1951-04-03 | 1954-05-25 | 0 | Details |
| US2677783A | Single trace high-speed time base circuit | Expired / Lapsed | 1952-03-07 | 1954-05-04 | 0 | Details |
| US2677126A | Wave signaling system | Expired / Lapsed | 1950-06-26 | 1954-04-27 | 0 | Details |
| US2643576A | Three-dimensional map model accuracy comparator | Expired / Lapsed | 1951-03-30 | 1953-06-30 | 0 | Details |
| US2642574A | Helmet for protection against low-temperatures | Expired / Lapsed | 1952-02-07 | 1953-06-23 | 0 | Details |
| US2639306A | Pile battery fabrication | Expired / Lapsed | 1951-02-02 | 1953-05-19 | 0 | Details |
| US2637841A | Position finding of electrical disturbances | Expired / Lapsed | 1951-04-20 | 1953-05-05 | 0 | Details |
| US2586869A | Waterproof pilot lamp | Expired / Lapsed | 1950-08-30 | 1952-02-26 | 0 | Details |
| US2515178A | Means for synchronizing detection and interrogation systems | Expired / Lapsed | 1943-10-12 | 1950-07-18 | 0 | Details |
| US2482128A | Receiver protection circuit | Expired / Lapsed | 1943-07-22 | 1949-09-20 | 0 | Details |