United States Department of the Air Force
United StaActive Patents
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Total Holdings
156
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US6363496B1 | Apparatus and method for reducing duration of timeout perio… | Expired / Lapsed | 1999-01-29 | 2002-03-26 | 9 | Details |
| US6252540B1 | Apparatus and method for two stage hybrid space-time adapti… | Expired / Lapsed | 1999-12-21 | 2001-06-26 | 23 | Details |
| US6247145B1 | Automated reliability and maintainability process | Expired / Lapsed | 1998-05-11 | 2001-06-12 | 2 | Details |
| US5342825A | Passive superconducting bearing system | Expired / Lapsed | 1993-07-16 | 1994-08-30 | 12 | Details |
| US5337730A | Endoscope cleansing catheter and method of use | Expired / Lapsed | 1992-06-18 | 1994-08-16 | 9 | Details |
| US5201035A | Dynamic algorithm selection for volume rendering, isocontou… | Expired / Lapsed | 1990-07-09 | 1993-04-06 | 23 | Details |
| USH1039H | Intrusion-free physiological condition monitoring | Expired / Lapsed | 1988-11-14 | 1992-04-07 | 19 | Details |
| US5007721A | Mechanically rotated Doppler frequency shifter | Expired / Lapsed | 1990-05-25 | 1991-04-16 | 14 | Details |
| US5004447A | Low loss semiconductor directional coupler switches includi… | Expired / Lapsed | 1989-09-06 | 1991-04-02 | 21 | Details |
| US4963963A | Infrared scanner using dynamic range conserving video proce… | Expired / Lapsed | 1985-02-26 | 1990-10-16 | 25 | Details |
| US4914734A | Intensity area correlation addition to terrain radiometric … | Expired / Lapsed | 1989-07-21 | 1990-04-03 | 8 | Details |
| US4858264A | Ultrasonic assisted protective coating removal | Expired / Lapsed | 1988-10-05 | 1989-08-22 | 22 | Details |
| USH637H | Method and apparatus for rapid optical phasing | Expired / Lapsed | 1986-04-30 | 1989-06-06 | 15 | Details |
| US4767985A | Claw grip contact probe for flat packs | Expired / Lapsed | 1987-12-08 | 1988-08-30 | 10 | Details |
| US4739334A | Electro-optical beamforming network for phased array antenn… | Expired / Lapsed | 1986-09-30 | 1988-04-19 | 20 | Details |
| US4728167A | Electrically controlled integrated optical switch | Expired / Lapsed | 1986-02-24 | 1988-03-01 | 9 | Details |
| US4727259A | Monolithic area array with shutter operable to only transmi… | Expired / Lapsed | 1986-02-24 | 1988-02-23 | 2 | Details |
| US4698602A | Micromirror spatial light modulator | Expired / Lapsed | 1985-10-09 | 1987-10-06 | 5 | Details |
| US4686997A | Skeletal bone remodeling studies using guided trephine samp… | Expired / Lapsed | 1986-11-13 | 1987-08-18 | 24 | Details |
| USH297H | Robotic refueling system for tactical and strategic aircraft | Expired / Lapsed | 1985-08-12 | 1987-07-07 | 3 | Details |
| US4666486A | Process for making bulk heavy metal fluoride glasses | Expired / Lapsed | 1985-09-24 | 1987-05-19 | 6 | Details |
| US4611915A | Absolute distance sensor | Expired / Lapsed | 1983-06-07 | 1986-09-16 | 2 | Details |
| US4591857A | Programmable LFM signal processor | Expired / Lapsed | 1983-07-11 | 1986-05-27 | 9 | Details |
| US4583096A | Fiber optic data distribution for phased array antenna | Expired / Lapsed | 1983-05-23 | 1986-04-15 | 5 | Details |
| US4580196A | Night vision compatible illumination for vehicle crewmember… | Expired / Lapsed | 1985-01-04 | 1986-04-01 | 18 | Details |
| US4573157A | Phase-conjugate resonator with a double SBS mirror | Expired / Lapsed | 1983-12-08 | 1986-02-25 | 11 | Details |
| US4564935A | Tropospheric scatter communication system having angle dive… | Expired / Lapsed | 1984-01-10 | 1986-01-14 | 8 | Details |
| US4534050A | X-ray goniometer | Expired / Lapsed | 1982-12-09 | 1985-08-06 | 8 | Details |
| US4505582A | Self-detecting optical sensors | Expired / Lapsed | 1982-07-14 | 1985-03-19 | 5 | Details |
| US4477814A | Dual mode radio frequency-infrared frequency system | Expired / Lapsed | 1982-08-02 | 1984-10-16 | 8 | Details |
| US4461006A | Synchronously pumped mode-locked semiconductor platelet las… | Expired / Lapsed | 1982-03-23 | 1984-07-17 | 15 | Details |
| US4448887A | Method for the particle size independent spectrometric dete… | Expired / Lapsed | 1982-09-30 | 1984-05-15 | 22 | Details |
| US4447149A | Pulsed laser radar apparatus | Expired / Lapsed | 1981-06-17 | 1984-05-08 | 6 | Details |
| US4426705A | Double electric discharge coaxial laser | Expired / Lapsed | 1981-10-06 | 1984-01-17 | 4 | Details |
| US4409661A | Aimpoint selection processor | Expired / Lapsed | 1981-04-22 | 1983-10-11 | 5 | Details |
| US4387955A | Holographic reflective grating multiplexer/demultiplexer | Expired / Lapsed | 1981-02-03 | 1983-06-14 | 9 | Details |
| US4370024A | Dynamic binary fourier filtered imaging system | Expired / Lapsed | 1980-05-06 | 1983-01-25 | 2 | Details |
| US4355900A | Self-calibrating interferometer | Expired / Lapsed | 1980-08-08 | 1982-10-26 | 11 | Details |
| US4355899A | Interferometric distance measurement method | Expired / Lapsed | 1980-05-22 | 1982-10-26 | 8 | Details |
| US4324758A | Analysis of lubricating oils for iron content | Expired / Lapsed | 1980-04-18 | 1982-04-13 | 3 | Details |
| US4298858A | Method and apparatus for augmenting binary patterns | Expired / Lapsed | 1980-03-27 | 1981-11-03 | 5 | Details |
| US4283755A | Modulator multilayer detector | Expired / Lapsed | 1980-02-05 | 1981-08-11 | 2 | Details |
| US4274098A | Loss-free scanning antenna | Expired / Lapsed | 1980-03-07 | 1981-06-16 | 5 | Details |
| US4274092A | Display system for microscopic optical instruments | Expired / Lapsed | 1979-11-07 | 1981-06-16 | 9 | Details |
| US4240745A | Imagery with constant range lines | Expired / Lapsed | 1974-07-29 | 1980-12-23 | 2 | Details |
| US4236819A | Imagery with constant range lines | Expired / Lapsed | 1974-07-29 | 1980-12-02 | 2 | Details |
| US4207407A | Aromatic heterocyclic polymer alloys and products produced … | Expired / Lapsed | 1978-05-03 | 1980-06-10 | 15 | Details |
| US4201611A | Carbon/carbon composite for re-entry vehicle applications | Expired / Lapsed | 1978-04-17 | 1980-05-06 | 2 | Details |
| US4185919A | Quadrant detection system | Expired / Lapsed | 1973-06-08 | 1980-01-29 | 3 | Details |
| US4181435A | Holographic field lens detector | Expired / Lapsed | 1973-06-29 | 1980-01-01 | 3 | Details |
| US4179657A | Anti-jamming communication system | Expired / Lapsed | 1958-08-28 | 1979-12-18 | 12 | Details |
| US4177465A | Near-range personnel beacon locator apparatus | Expired / Lapsed | 1978-10-06 | 1979-12-04 | 8 | Details |
| US4171915A | Laser interferometer probe | Expired / Lapsed | 1977-10-07 | 1979-10-23 | 5 | Details |
| US4163985A | Nonvolatile punch through memory cell with buried n+ region… | Expired / Lapsed | 1977-09-30 | 1979-08-07 | 6 | Details |
| US4157231A | Hydraulic drill unit | Expired / Lapsed | 1977-09-27 | 1979-06-05 | 8 | Details |
| US4137370A | Titanium and titanium alloys ion plated with noble metals a… | Expired / Lapsed | 1977-08-16 | 1979-01-30 | 4 | Details |
| US4135494A | Over-pressure protection device | Expired / Lapsed | 1977-03-09 | 1979-01-23 | 3 | Details |
| US4099050A | Codable optical transponder | Expired / Lapsed | 1970-07-10 | 1978-07-04 | 10 | Details |
| US4070709A | Piecewise linear predictive coding system | Expired / Lapsed | 1976-10-13 | 1978-01-24 | 6 | Details |
| US4063684A | Composite rocket nozzle structure | Expired / Lapsed | 1975-11-25 | 1977-12-20 | 2 | Details |
| US4058002A | Dispersive electromagnetic surface acoustic wave transducer | Expired / Lapsed | 1976-12-23 | 1977-11-15 | 10 | Details |
| US4053773A | Mosaic infrared sensor | Expired / Lapsed | 1976-03-23 | 1977-10-11 | 2 | Details |
| US4053764A | Higher-order mode fiber optics t-coupler | Expired / Lapsed | 1975-10-02 | 1977-10-11 | 3 | Details |
| US4050656A | Ejector rack | Expired / Lapsed | 1976-05-17 | 1977-09-27 | 9 | Details |
| US4049222A | Ejector rack for nuclear stores | Expired / Lapsed | 1976-07-20 | 1977-09-20 | 17 | Details |
| US4050068A | Augmented tracking system | Expired / Lapsed | 1976-03-15 | 1977-09-20 | 6 | Details |
| US4006479A | Method for dispersing metallic particles in a dielectric bi… | Expired / Lapsed | 1969-02-04 | 1977-02-01 | 8 | Details |
| US3999281A | Method for fabricating a gridded Schottky barrier field eff… | Expired / Lapsed | 1976-01-16 | 1976-12-28 | 3 | Details |
| US3998088A | Testing apparatus for incremental shaft encoder | Expired / Lapsed | 1975-11-12 | 1976-12-21 | 5 | Details |
| US3993976A | Method and apparatus for pattern analysis | Expired / Lapsed | 1974-05-13 | 1976-11-23 | 5 | Details |
| US3987453A | Balanced exciter for wideband antenna element | Expired / Lapsed | 1975-08-18 | 1976-10-19 | 4 | Details |
| US3975738A | Periodic antenna surface of tripole slot elements | Expired / Lapsed | 1975-05-12 | 1976-08-17 | 5 | Details |
| US3975748A | Multispectral laser camera device | Expired / Lapsed | 1970-05-22 | 1976-08-17 | 11 | Details |
| US3951137A | Rebreathing system | Expired / Lapsed | 1974-11-20 | 1976-04-20 | 12 | Details |
| US3942175A | Multipurpose keyboard system | Expired / Lapsed | 1975-03-27 | 1976-03-02 | 4 | Details |
| US3910373A | Acoustic rotation rate sensor | Expired / Lapsed | 1973-11-07 | 1975-10-07 | 2 | Details |
| US3900744A | High speed electronic channel discriminator | Expired / Lapsed | 1974-02-04 | 1975-08-19 | 2 | Details |
| US3887785A | Temperature controlled hybrid oven | Expired / Lapsed | 1974-08-29 | 1975-06-03 | 2 | Details |
| US3867033A | Multi-component flow probe | Expired / Lapsed | 1973-06-04 | 1975-02-18 | 4 | Details |
| US3866163A | Angle data processor for reciprocating narrow scanning beams | Expired / Lapsed | 1973-07-02 | 1975-02-11 | 9 | Details |
| US3842367A | Technique and apparatus for stabilizing the frequency of a … | Expired / Lapsed | 1973-04-25 | 1974-10-15 | 7 | Details |
| US3837965A | Portable repair apparatus | Expired / Lapsed | 1972-10-17 | 1974-09-24 | 0 | Details |
| US3814503A | Ultra-fast terminator for intense laser pulses | Expired / Lapsed | 1973-02-07 | 1974-06-04 | 6 | Details |
| US3815135A | Direction finding interferometer for a linear fm signal | Expired / Lapsed | 1972-10-26 | 1974-06-04 | 4 | Details |
| US3802419A | Respiration monitor | Expired / Lapsed | 1972-04-11 | 1974-04-09 | 17 | Details |
| US3799144A | Solar heat source and receiver system | Expired / Lapsed | 1972-03-21 | 1974-03-26 | 4 | Details |
| US3795452A | Instrument for automatically inspecting integrated circuit … | Expired / Lapsed | 1973-02-28 | 1974-03-05 | 4 | Details |
| US3786370A | Spaceborne sun pumped laser | Expired / Lapsed | 1973-05-01 | 1974-01-15 | 8 | Details |
| US3780533A | Composite wall for a regeneratively cooled thrust chamber o… | Expired / Lapsed | 1972-05-17 | 1973-12-25 | 5 | Details |
| US3774223A | High-frequency waveguide feed in combination with a short-b… | Expired / Lapsed | 1972-10-04 | 1973-11-20 | 19 | Details |
| US3772703A | Normalized decorrelation detector | Expired / Lapsed | 1972-02-15 | 1973-11-13 | 4 | Details |
| US3753616A | Laser doppler velocimeter detector | Expired / Lapsed | 1971-11-22 | 1973-08-21 | 3 | Details |
| US3740538A | Digital sorter and ranker | Expired / Lapsed | 1971-07-28 | 1973-06-19 | 3 | Details |
| US3738750A | Doppler shift laser velocimeter data processor | Expired / Lapsed | 1970-12-10 | 1973-06-12 | 2 | Details |
| US3735404A | Crossover circuit for monopulse radar | Expired / Lapsed | 1965-06-07 | 1973-05-22 | 4 | Details |
| US3732505A | End pump device for a laser | Expired / Lapsed | 1972-06-07 | 1973-05-08 | 3 | Details |
| US3725917A | Radar phase comparison method and system for object recogni… | Expired / Lapsed | 1969-01-27 | 1973-04-03 | 4 | Details |
| US3723004A | Laser velocimeter employing dual scatter detection | Expired / Lapsed | 1971-05-18 | 1973-03-27 | 4 | Details |
| US3719946A | Radar phase comparison system including a superhetrodyne re… | Expired / Lapsed | 1969-01-27 | 1973-03-06 | 5 | Details |
| US3702479A | Space diversity antenna system for uhf satellite communicat… | Expired / Lapsed | 1971-07-07 | 1972-11-07 | 12 | Details |
| US3699570A | Tacan ground station track and display system | Expired / Lapsed | 1970-09-10 | 1972-10-17 | 2 | Details |
| US3695761A | Photomultiplier for a laser velocimeter | Expired / Lapsed | 1970-07-31 | 1972-10-03 | 4 | Details |
| US3678387A | Satellite communications system | Expired / Lapsed | 1970-08-05 | 1972-07-18 | 2 | Details |
| US3671729A | Obscuration delineation circuitry | Expired / Lapsed | 1971-03-10 | 1972-06-20 | 4 | Details |
| US3670573A | Apparatus for measuring thumb and finger force | Expired / Lapsed | 1970-11-18 | 1972-06-20 | 5 | Details |
| US3641433A | Transmitted reference synchronization system | Expired / Lapsed | 1969-06-09 | 1972-02-08 | 3 | Details |
| US3634859A | Moving target indicator with automatic clutter residue cont… | Expired / Lapsed | 1967-08-08 | 1972-01-11 | 3 | Details |
| US3631252A | Image control apparatus utilizing the convolution of phosph… | Expired / Lapsed | 1970-03-24 | 1971-12-28 | 5 | Details |
| US3620082A | Digital thermometer | Expired / Lapsed | 1970-03-13 | 1971-11-16 | 0 | Details |
| US3617607A | Electromagnetic interference shield isolator | Expired / Lapsed | 1970-07-10 | 1971-11-02 | 3 | Details |
| US3614239A | Photoelectric space-object position measuring device | Expired / Lapsed | 1970-04-21 | 1971-10-19 | 13 | Details |
| US3586835A | Digital cardiotachometer | Expired / Lapsed | 1968-04-19 | 1971-06-22 | 4 | Details |
| US3572882A | Variable reference phase holocamera to compensate for objec… | Expired / Lapsed | 1969-11-28 | 1971-03-30 | 3 | Details |
| US3572909A | Infrared optometer | Expired / Lapsed | 1969-08-05 | 1971-03-30 | 6 | Details |
| US3569731A | Voltage level detector | Expired / Lapsed | 1968-08-20 | 1971-03-09 | 6 | Details |
| US3563716A | Potting quartz glass fiber bundle ends | Expired / Lapsed | 1968-05-17 | 1971-02-16 | 0 | Details |
| US3557794A | Arterial dilation device | Expired / Lapsed | 1968-07-30 | 1971-01-26 | 5 | Details |
| US3552855A | Laser velocimeter utilizing fiber optics | Expired / Lapsed | 1969-04-16 | 1971-01-05 | 0 | Details |
| US3546700A | Radar beam deflection system | Expired / Lapsed | 1968-04-10 | 1970-12-08 | 0 | Details |
| US3530399A | Ultralinear sweep generator | Expired / Lapsed | 1968-11-26 | 1970-09-22 | 0 | Details |
| US3523529A | Oxygen consumption computer | Expired / Lapsed | 1968-06-25 | 1970-08-11 | 0 | Details |
| US3524074A | Wide band logarithmic amplifier | Expired / Lapsed | 1967-01-06 | 1970-08-11 | 0 | Details |
| US3521288A | Antenna array employing beam waveguide feed | Expired / Lapsed | 1968-07-10 | 1970-07-21 | 0 | Details |
| US3519012A | Low-respiratory valve | Expired / Lapsed | 1968-10-28 | 1970-07-07 | 0 | Details |
| US3519331A | Two-dimensional optical data processor | Expired / Lapsed | 1961-03-15 | 1970-07-07 | 2 | Details |
| US3507992A | Moving target discriminator | Expired / Lapsed | 1967-09-26 | 1970-04-21 | 0 | Details |
| US3505991A | Intracorporeal vascular prosthetic blood irradiator | Expired / Lapsed | 1968-02-13 | 1970-04-14 | 0 | Details |
| US3500823A | Electrocardiographic and bioelectric capacitive electrode | Expired / Lapsed | 1967-11-20 | 1970-03-17 | 0 | Details |
| US3497376A | Method for application of solid lubricant coatings | Expired / Lapsed | 1966-10-10 | 1970-02-24 | 0 | Details |
| US3494698A | Feedback control device for stabilization of interference f… | Expired / Lapsed | 1967-02-21 | 1970-02-10 | 0 | Details |
| US3487223A | Multiple internal reflection structure in a silicon detecto… | Expired / Lapsed | 1968-07-10 | 1969-12-30 | 0 | Details |
| US3483320A | Image transducers using extrinsic photoconductors | Expired / Lapsed | 1966-04-01 | 1969-12-09 | 0 | Details |
| US3471855A | System for generating test signals for an array of receiver… | Expired / Lapsed | 1968-11-25 | 1969-10-07 | 0 | Details |
| US3462340A | Fiber-containing pyrolytic composite material | Expired / Lapsed | 1965-07-28 | 1969-08-19 | 0 | Details |
| US3452296A | Laser system for generating coherent light | Expired / Lapsed | 1965-04-20 | 1969-06-24 | 0 | Details |
| US3434467A | Implantable radiation assembly for circulating systems | Expired / Lapsed | 1966-08-15 | 1969-03-25 | 0 | Details |
| US3433725A | Method of making metal or metalloid carbide yarn by decompo… | Expired / Lapsed | 1966-04-15 | 1969-03-18 | 0 | Details |
| US3431150A | Process for implanting grids in semiconductor devices | Expired / Lapsed | 1966-10-07 | 1969-03-04 | 0 | Details |
| US3431405A | Spectrum analyzer | Expired / Lapsed | 1965-02-16 | 1969-03-04 | 0 | Details |
| US3422264A | Device for producing stereoscopic radiographs | Expired / Lapsed | 1966-01-14 | 1969-01-14 | 0 | Details |
| US3418170A | Solar cell panels from nonuniform dendrites | Expired / Lapsed | 1964-09-09 | 1968-12-24 | 0 | Details |
| US3402392A | Time division multiplex matrix data transfer system having … | Expired / Lapsed | 1964-09-24 | 1968-09-17 | 0 | Details |
| US3399387A | Time division electronic modular matrix switching system | Expired / Lapsed | 1966-06-03 | 1968-08-27 | 2 | Details |
| US3398288A | Velocity selector using light conducting rods and a plurali… | Expired / Lapsed | 1965-02-16 | 1968-08-20 | 0 | Details |
| US3391404A | Passive data transmission technique utilizing radar echoes | Expired / Lapsed | 1959-05-18 | 1968-07-02 | 2 | Details |
| US3383084A | Pulse-actuated valve | Expired / Lapsed | 1966-12-12 | 1968-05-14 | 0 | Details |
| US3379555A | Vapor deposition of pyrolytic graphite on tungsten | Expired / Lapsed | 1964-05-01 | 1968-04-23 | 0 | Details |
| US3374425A | Cascaded power supply for producing a clean d-c output | Expired / Lapsed | 1966-05-19 | 1968-03-19 | 2 | Details |
| US3366090A | Glow discharge vapor deposition apparatus | Expired / Lapsed | 1966-04-07 | 1968-01-30 | 2 | Details |
| US3364065A | High temperature reflective and thermally protective coatin… | Expired / Lapsed | 1963-10-07 | 1968-01-16 | 2 | Details |
| US3360993A | Single thermocouple differentiating method and system | Expired / Lapsed | 1965-08-27 | 1968-01-02 | 0 | Details |
| US2682010A | Cathode-ray projection tube | Expired / Lapsed | 1952-10-31 | 1954-06-22 | 0 | Details |
| US2680228A | Optimum filter for detecting and differentiating complex si… | Expired / Lapsed | 1952-06-27 | 1954-06-01 | 0 | Details |
| US2649019A | Contractible head mount for binoculars | Expired / Lapsed | 1949-09-02 | 1953-08-18 | 0 | Details |
| US2643852A | High-speed turbine | Expired / Lapsed | 1950-01-09 | 1953-06-30 | 0 | Details |
| US2512256A | Gunnery training device | Expired / Lapsed | 1948-04-13 | 1950-06-20 | 0 | Details |