Lockheed Martin Corp
Lockheed MActive Patents
0
Total Holdings
155
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US6682250B2 | Position-adjustable fastening apparatus and method | Expired / Lapsed | 2001-11-07 | 2004-01-27 | 28 | Details |
| US6002723A | Digital receiver having programmable complex threshold dete… | Expired / Lapsed | 1997-08-15 | 1999-12-14 | 9 | Details |
| US5504719A | Laser hydrophone and virtual array of laser hydrophones | Expired / Lapsed | 1974-09-19 | 1996-04-02 | 16 | Details |
| US5436453A | Dual mode energy detector having monolithic integrated circ… | Expired / Lapsed | 1993-10-15 | 1995-07-25 | 10 | Details |
| US5307073A | Optically controlled phased array radar | Expired / Lapsed | 1992-11-13 | 1994-04-26 | 43 | Details |
| US5262782A | Microburst precursor detector | Expired / Lapsed | 1992-05-13 | 1993-11-16 | 21 | Details |
| US5191339A | Phased-array antenna controller | Expired / Lapsed | 1992-03-05 | 1993-03-02 | 28 | Details |
| US5187487A | Compact wide tunable bandwidth phased array antenna control… | Expired / Lapsed | 1992-03-05 | 1993-02-16 | 41 | Details |
| US5085548A | Nut and snap ring position locking device | Expired / Lapsed | 1991-04-30 | 1992-02-04 | 25 | Details |
| US5068597A | Spectral estimation utilizing a minimum free energy method … | Expired / Lapsed | 1989-10-30 | 1991-11-26 | 2 | Details |
| US4949089A | Portable target locator system | Expired / Lapsed | 1989-08-24 | 1990-08-14 | 23 | Details |
| US4783593A | Optical system for wide angle IR imager | Expired / Lapsed | 1985-12-26 | 1988-11-08 | 7 | Details |
| US4761308A | Process for the preparation of reflective pyrolytic graphite | Expired / Lapsed | 1987-06-22 | 1988-08-02 | 14 | Details |
| US4686629A | Logic cell placement method in computer-aided-customization… | Expired / Lapsed | 1986-07-21 | 1987-08-11 | 22 | Details |
| US4500602A | Composite protective coating for carbon-carbon substrates | Expired / Lapsed | 1981-08-10 | 1985-02-19 | 14 | Details |
| US4386848A | Optical target tracking and designating system | Expired / Lapsed | 1980-08-11 | 1983-06-07 | 23 | Details |
| US4355893A | Eye-safe laser cloud height rangefinder | Expired / Lapsed | 1980-09-08 | 1982-10-26 | 22 | Details |
| US4313185A | Acoustic vibration sensor and sensing system | Expired / Lapsed | 1979-12-31 | 1982-01-26 | 11 | Details |
| US4298982A | Fault-tolerant interface circuit for parallel digital bus | Expired / Lapsed | 1980-06-03 | 1981-11-03 | 12 | Details |
| US4291404A | Automatic circuit tester with improved voltage regulator | Expired / Lapsed | 1979-11-20 | 1981-09-22 | 5 | Details |
| US4254476A | Associative processor | Expired / Lapsed | 1979-06-25 | 1981-03-03 | 6 | Details |
| US4253469A | Implantable temperature probe | Expired / Lapsed | 1979-04-20 | 1981-03-03 | 8 | Details |
| US4245221A | FM-CW Radar ranging system with automatic calibration | Expired / Lapsed | 1979-04-27 | 1981-01-13 | 8 | Details |
| US4171513A | Secure communications system | Expired / Lapsed | 1969-07-22 | 1979-10-16 | 8 | Details |
| US4123017A | Dual, non-crossing horizontal gate tracking circuit and met… | Expired / Lapsed | 1970-11-09 | 1978-10-31 | 12 | Details |
| US4106726A | Prestored area correlation tracker | Expired / Lapsed | 1969-11-04 | 1978-08-15 | 31 | Details |
| US4103847A | Line scan area signature detection method | Expired / Lapsed | 1976-02-09 | 1978-08-01 | 16 | Details |
| US4028500A | Mobile unit supervisory control sequencer and method | Expired / Lapsed | 1975-04-21 | 1977-06-07 | 46 | Details |
| US4010637A | Machine vibration monitor and method | Expired / Lapsed | 1975-10-06 | 1977-03-08 | 12 | Details |
| US3995269A | Alignment of a video display system having multiple inputs | Expired / Lapsed | 1974-11-29 | 1976-11-30 | 5 | Details |
| US3983511A | Normal incidence face pumped disc laser | Expired / Lapsed | 1975-09-08 | 1976-09-28 | 7 | Details |
| US3898390A | Multiple zone communications system and method | Expired / Lapsed | 1973-05-15 | 1975-08-05 | 49 | Details |
| US3836726A | Data transmission method and apparatus | Expired / Lapsed | 1971-10-25 | 1974-09-17 | 92 | Details |
| US3808591A | Voice warning system | Expired / Lapsed | 1971-08-11 | 1974-04-30 | 19 | Details |
| US3799675A | Direction determining system | Expired / Lapsed | 1972-12-07 | 1974-03-26 | 13 | Details |
| US3778160A | Electronic distance measuring device and method | Expired / Lapsed | 1970-12-18 | 1973-12-11 | 24 | Details |
| US3730628A | Electronic distance measuring method and apparatus | Expired / Lapsed | 1970-12-16 | 1973-05-01 | 32 | Details |
| US3711361A | Expansion permitting arrangement and method of joining memb… | Expired / Lapsed | 1970-10-27 | 1973-01-16 | 0 | Details |
| US3708786A | Stored program format generator | Expired / Lapsed | 1971-10-20 | 1973-01-02 | 8 | Details |
| US3704070A | Direction determining system | Expired / Lapsed | 1971-05-24 | 1972-11-28 | 24 | Details |
| US3668687A | Raster scan symbol generator | Expired / Lapsed | 1969-11-17 | 1972-06-06 | 17 | Details |
| US3659285A | Television gaming apparatus and method | Expired / Lapsed | 1969-08-21 | 1972-04-25 | 20 | Details |
| US3622877A | Apparatus for testing modulator demodulator units for trans… | Expired / Lapsed | 1969-11-07 | 1971-11-23 | 8 | Details |
| US3605728A | Current limiting safety electrode lead | Expired / Lapsed | 1969-06-19 | 1971-09-20 | 0 | Details |
| US3603691A | Laser control for automatic alignment of structures | Expired / Lapsed | 1969-07-25 | 1971-09-07 | 24 | Details |
| US3597755A | Active electro-optical intrusion alarm system having automa… | Expired / Lapsed | 1968-05-28 | 1971-08-03 | 9 | Details |
| US3582633A | Method and apparatus for fault detection in a logic circuit | Expired / Lapsed | 1968-02-20 | 1971-06-01 | 12 | Details |
| US3579197A | Apparatus for programmable control of electromechanical dev… | Expired / Lapsed | 1969-02-28 | 1971-05-18 | 66 | Details |
| US3565531A | Electro-optical thickness measurement apparatus | Expired / Lapsed | 1969-03-12 | 1971-02-23 | 0 | Details |
| US3548378A | Integrated parameter display of galvanometer reading | Expired / Lapsed | 1966-02-03 | 1970-12-15 | 0 | Details |
| US3543269A | System for displaying video information and related indicia… | Expired / Lapsed | 1968-07-02 | 1970-11-24 | 0 | Details |
| US3525330A | Surgical garment prescription method and apparatus | Expired / Lapsed | 1966-02-24 | 1970-08-25 | 0 | Details |
| US3509624A | Method of making multilayer printed circuits | Expired / Lapsed | 1967-09-11 | 1970-05-05 | 0 | Details |
| US3508561A | Method of and means for controlling fluid flows | Expired / Lapsed | 1967-03-20 | 1970-04-28 | 0 | Details |
| US3503012A | Optical differential interferometer discriminator for fm to… | Expired / Lapsed | 1967-11-13 | 1970-03-24 | 0 | Details |
| US3498291A | Body signal sensing electrode apparatus | Expired / Lapsed | 1966-02-10 | 1970-03-03 | 0 | Details |
| US3482309A | Intensity control for vector generators having uniform vect… | Expired / Lapsed | 1966-04-28 | 1969-12-09 | 0 | Details |
| US3480779A | Radiant energy target acquisition and tracking logic system | Expired / Lapsed | 1965-12-27 | 1969-11-25 | 0 | Details |
| US3467958A | Analog to digital converter using a plurality of radix ampl… | Expired / Lapsed | 1965-12-29 | 1969-09-16 | 0 | Details |
| US3464330A | Optical writing device | Expired / Lapsed | 1967-11-24 | 1969-09-02 | 0 | Details |
| US3463924A | Opposite circularly-polarized optical heterodyne detection … | Expired / Lapsed | 1966-12-16 | 1969-08-26 | 0 | Details |
| US3461416A | Pressure transducer utilizing semiconductor beam | Expired / Lapsed | 1967-12-04 | 1969-08-12 | 0 | Details |
| US3456316A | Double-land end mills | Expired / Lapsed | 1967-08-31 | 1969-07-22 | 0 | Details |
| US3444528A | Redundant computer systems | Expired / Lapsed | 1966-11-17 | 1969-05-13 | 0 | Details |
| US3430047A | Background cancelling optical detection system | Expired / Lapsed | 1965-01-04 | 1969-02-25 | 0 | Details |
| US3426150A | System for fm transmission of cardiological data over telep… | Expired / Lapsed | 1965-09-27 | 1969-02-04 | 0 | Details |
| US3420739A | Closed ecological system for the support of animal life and… | Expired / Lapsed | 1963-09-23 | 1969-01-07 | 2 | Details |
| US3409007A | Body electrode support garment | Expired / Lapsed | 1965-11-26 | 1968-11-05 | 0 | Details |
| US3409368A | Ranging device | Expired / Lapsed | 1964-01-07 | 1968-11-05 | 0 | Details |
| US3405387A | Acoustical underwater control apparatus | Expired / Lapsed | 1965-10-24 | 1968-10-08 | 0 | Details |
| US3393300A | Apparatus to control a number of graphical plotting machine… | Expired / Lapsed | 1963-07-29 | 1968-07-16 | 2 | Details |
| US3391392A | Method and apparatus for pattern data processing | Expired / Lapsed | 1965-10-18 | 1968-07-02 | 0 | Details |
| US3389393A | Low profile broadband microwave antenna system | Expired / Lapsed | 1966-02-18 | 1968-06-18 | 0 | Details |
| US3386079A | Error reducing device | Expired / Lapsed | 1964-10-01 | 1968-05-28 | 0 | Details |
| US3386081A | Pulse sampling and comparison system suitable for use with … | Expired / Lapsed | 1964-02-28 | 1968-05-28 | 0 | Details |
| US3382460A | Linearly swept frequency generator | Expired / Lapsed | 1967-09-11 | 1968-05-07 | 2 | Details |
| US3364484A | Low ambiguity radar scanning | Expired / Lapsed | 1963-09-09 | 1968-01-16 | 2 | Details |
| US3355942A | Man-carried auto-navigation device | Expired / Lapsed | 1965-05-14 | 1967-12-05 | 4 | Details |
| US3352196A | Sighting device which superimposes the image of target with… | Expired / Lapsed | 1963-09-03 | 1967-11-14 | 1 | Details |
| US3340529A | Fm altimeter with reduced step error | Expired / Lapsed | 1963-06-11 | 1967-09-05 | 2 | Details |
| US3331035A | Frequency synthesizer | Expired / Lapsed | 1965-08-23 | 1967-07-11 | 2 | Details |
| US3327067A | Cockpit sound recorder | Expired / Lapsed | 1963-02-04 | 1967-06-20 | 2 | Details |
| US3308908A | Energy absorber | Expired / Lapsed | 1965-01-11 | 1967-03-14 | 2 | Details |
| US3305689A | Electro-optical signal converter system | Expired / Lapsed | 1963-06-26 | 1967-02-21 | 2 | Details |
| US3278926A | Digital graphical display system | Expired / Lapsed | 1962-12-14 | 1966-10-11 | 2 | Details |
| US3274552A | Adaptive missile control system | Expired / Lapsed | 1962-06-25 | 1966-09-20 | 2 | Details |
| US3267333A | Modular electronic package | Expired / Lapsed | 1964-02-28 | 1966-08-16 | 2 | Details |
| US3246435A | Building of composite panels with interfitting posts and ro… | Expired / Lapsed | 1962-04-23 | 1966-04-19 | 0 | Details |
| US3237159A | High speed comparator | Expired / Lapsed | 1961-12-07 | 1966-02-22 | 2 | Details |
| US3226569A | Failure detection circuits for redundant systems | Expired / Lapsed | 1962-07-30 | 1965-12-28 | 1 | Details |
| US3216261A | Apparatus for counting pulses | Expired / Lapsed | 1964-08-18 | 1965-11-09 | 2 | Details |
| US3201851A | Method of making interconnecting multilayer circuits | Expired / Lapsed | 1960-10-05 | 1965-08-24 | 2 | Details |
| US3153196A | Optimum coding technique | Expired / Lapsed | 1962-04-19 | 1964-10-13 | 2 | Details |
| US3121771A | Electrical connector | Expired / Lapsed | 1960-09-15 | 1964-02-18 | 2 | Details |
| US3121337A | Piezoresistive transducer employing oxygen-deficient rutile… | Expired / Lapsed | 1959-11-24 | 1964-02-18 | 1 | Details |
| US3119998A | Object locating systems | Expired / Lapsed | 1956-09-21 | 1964-01-28 | 2 | Details |
| US3117692A | Container and lid assembly | Expired / Lapsed | 1962-01-08 | 1964-01-14 | 2 | Details |
| US3099054A | Flexible multi-purpose clamp | Expired / Lapsed | 1961-04-24 | 1963-07-30 | 0 | Details |
| US3086708A | Method and apparatus for automatic digital process control | Expired / Lapsed | 1961-10-30 | 1963-04-23 | 1 | Details |
| US3085190A | Static inverter | Expired / Lapsed | 1960-07-18 | 1963-04-09 | 2 | Details |
| US3083615A | Optical apparatus for making and reconstructing holograms | Expired / Lapsed | 1960-05-16 | 1963-04-02 | 2 | Details |
| US3059116A | Photoelectric sampling switch | Expired / Lapsed | 1959-09-08 | 1962-10-16 | 0 | Details |
| US3045476A | Vibration testing device | Expired / Lapsed | 1960-02-09 | 1962-07-24 | 0 | Details |
| US3045232A | Electronic velocity indicator apparatus | Expired / Lapsed | 1956-03-30 | 1962-07-17 | 0 | Details |
| US3043992A | Sawtooth wave generator | Expired / Lapsed | 1958-01-24 | 1962-07-10 | 0 | Details |
| US3034011A | Combined optical and electronic circuit devices | Expired / Lapsed | 1959-12-03 | 1962-05-08 | 0 | Details |
| US3026773A | Rocket nose installation | Expired / Lapsed | 1950-01-26 | 1962-03-27 | 0 | Details |
| US3006819A | Method of photo-plating electrical circuits | Expired / Lapsed | 1955-06-13 | 1961-10-31 | 0 | Details |
| US2929794A | Composition comprising polyester-polyisocyanate reaction pr… | Expired / Lapsed | 1954-09-13 | 1960-03-22 | 2 | Details |
| US2904682A | Frequency ratio detector | Expired / Lapsed | 1955-08-22 | 1959-09-15 | 0 | Details |
| US2903035A | Barrel nut retainer having flexible resilient overlying web | Expired / Lapsed | 1955-04-15 | 1959-09-08 | 0 | Details |
| US2894919A | Flexible resilient cellular polyurethane resin products | Expired / Lapsed | 1954-08-02 | 1959-07-14 | 2 | Details |
| US2880417A | Traveling wave device | Expired / Lapsed | 1955-02-11 | 1959-03-31 | 0 | Details |
| US2845619A | Target identification discriminator | Expired / Lapsed | 1955-08-22 | 1958-07-29 | 0 | Details |
| US2816252A | Electronic module device | Expired / Lapsed | 1953-11-12 | 1957-12-10 | 0 | Details |
| US2814210A | Cable tension regulator | Expired / Lapsed | 1954-09-30 | 1957-11-26 | 0 | Details |
| US2802648A | Proportioning and mixing fluid dispensing device | Expired / Lapsed | 1953-12-01 | 1957-08-13 | 0 | Details |
| US2779998A | Method of forming a mechanical and electrical connection | Expired / Lapsed | 1952-01-30 | 1957-02-05 | 0 | Details |
| US2780350A | Package with cellular plastic packaging means | Expired / Lapsed | 1951-12-11 | 1957-02-05 | 0 | Details |
| US2772245A | Resilient cellular resin products | Expired / Lapsed | 1952-04-26 | 1956-11-27 | 2 | Details |
| US2767461A | Method of making propeller or rotor blade | Expired / Lapsed | 1951-03-27 | 1956-10-23 | 0 | Details |
| US2764566A | Polyisocyanate-alkyd resin-substituted polymethylol phenol … | Expired / Lapsed | 1953-03-16 | 1956-09-25 | 1 | Details |
| US2738772A | Automatic pilot-hydraulic booster system | Expired / Lapsed | 1954-07-21 | 1956-03-20 | 0 | Details |
| US2737051A | Pressure measuring device | Expired / Lapsed | 1950-09-23 | 1956-03-06 | 0 | Details |
| US2728702A | Composite cellular plastic structure | Expired / Lapsed | 1951-07-13 | 1955-12-27 | 4 | Details |
| US2724782A | Phase sequence correcting circuit | Expired / Lapsed | 1953-04-15 | 1955-11-22 | 0 | Details |
| US2722587A | Electric strain sensing device | Expired / Lapsed | 1953-03-20 | 1955-11-01 | 0 | Details |
| US2707272A | Mounting device for electric components | Expired / Lapsed | 1954-05-21 | 1955-04-26 | 0 | Details |
| US2686244A | Electrical attachnent of temperature sensing devices and th… | Expired / Lapsed | 1951-04-19 | 1954-08-10 | 0 | Details |
| US2659528A | Gas turbine compressor system | Expired / Lapsed | 1948-09-29 | 1953-11-17 | 0 | Details |
| US2654020A | Indirect instrument illumination | Expired / Lapsed | 1949-12-10 | 1953-09-29 | 0 | Details |
| US2639252A | Method of making housing for electrical apparatus | Expired / Lapsed | 1949-02-17 | 1953-05-19 | 2 | Details |
| US2634244A | Cellular plastics having foam stabilizing additives | Expired / Lapsed | 1950-11-09 | 1953-04-07 | 2 | Details |
| US2621276A | Electrical strain gauge and method of making same | Expired / Lapsed | 1949-12-09 | 1952-12-09 | 0 | Details |
| US2621002A | Steerable landing gear for airplanes | Expired / Lapsed | 1948-11-23 | 1952-12-09 | 0 | Details |
| US2602783A | Cellular foamed alkyd-diisocyanate resins | Expired / Lapsed | 1949-01-14 | 1952-07-08 | 1 | Details |
| US2577279A | Foamed alkyd-isocyanate plastics | Expired / Lapsed | 1948-06-25 | 1951-12-04 | 2 | Details |
| US2540594A | Ram jet engine having variable area inlets | Expired / Lapsed | 1946-08-23 | 1951-02-06 | 0 | Details |
| US2514798A | Reversible or berthable seat | Expired / Lapsed | 1947-06-12 | 1950-07-11 | 0 | Details |
| US2512790A | Control and indicator for supersonic vehicles | Expired / Lapsed | 1948-01-09 | 1950-06-27 | 0 | Details |
| US2511495A | Universal and slip joint | Expired / Lapsed | 1943-09-06 | 1950-06-13 | 0 | Details |
| US2504422A | Aircraft engine and fuselage arrangement | Expired / Lapsed | 1950-01-05 | 1950-04-18 | 0 | Details |
| US2504421A | Aircraft engine and fuselage arrangement | Expired / Lapsed | 1946-04-25 | 1950-04-18 | 0 | Details |
| US2479713A | Canopy control and jettisoning mechanism | Expired / Lapsed | 1947-12-13 | 1949-08-23 | 0 | Details |
| US2479777A | Fuel injection means for gas turbine power plants for aircr… | Expired / Lapsed | 1945-02-16 | 1949-08-23 | 0 | Details |
| US2458032A | Method of cementing methyl methacrylate plastics | Expired / Lapsed | 1944-08-22 | 1949-01-04 | 0 | Details |
| US2448824A | Rotary turbine-type hydraulic coupling | Expired / Lapsed | 1944-11-24 | 1948-09-07 | 0 | Details |
| US2424901A | Valve for pressure fluid servomotors | Expired / Lapsed | 1943-08-09 | 1947-07-29 | 0 | Details |
| US2421685A | Alignable pulley | Expired / Lapsed | 1944-07-26 | 1947-06-03 | 0 | Details |
| US2417347A | Vibration damper | Expired / Lapsed | 1943-07-06 | 1947-03-11 | 0 | Details |
| US2405670A | Pressurizing equipment for aircraft | Expired / Lapsed | 1942-08-17 | 1946-08-13 | 0 | Details |
| US2396901A | Detachable plug | Expired / Lapsed | 1943-01-02 | 1946-03-19 | 0 | Details |
| US2382289A | Force gauge | Expired / Lapsed | 1942-12-07 | 1945-08-14 | 0 | Details |
| US2362887A | Gun turret | Expired / Lapsed | 1940-05-16 | 1944-11-14 | 0 | Details |
| US2293656A | Transparent closure and mounting | Expired / Lapsed | 1942-01-03 | 1942-08-18 | 0 | Details |