Patent Explorer
Browse, filter, and analyze 43 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US5436453A | Dual mode energy detector having monolithic integrated circuit construction | Lockheed Martin Corp | Expired / Lapsed | 1993-10-15 | 1995-07-25 | 2013-10-15 | 0.0 yrs | 10 | |
| US5307073A | Optically controlled phased array radar | Lockheed Martin Corp | Expired / Lapsed | 1992-11-13 | 1994-04-26 | 2012-11-13 | 0.0 yrs | 43 | |
| US5191339A | Phased-array antenna controller | Lockheed Martin Corp | Expired / Lapsed | 1992-03-05 | 1993-03-02 | 2012-03-05 | 0.0 yrs | 28 | |
| US4298982A | Fault-tolerant interface circuit for parallel digital bus | Lockheed Martin Corp | Expired / Lapsed | 1980-06-03 | 1981-11-03 | 2000-06-03 | 0.0 yrs | 12 | |
| US4291404A | Automatic circuit tester with improved voltage regulator | Lockheed Martin Corp | Expired / Lapsed | 1979-11-20 | 1981-09-22 | 1999-11-20 | 0.0 yrs | 5 | |
| US4010637A | Machine vibration monitor and method | Lockheed Martin Corp | Expired / Lapsed | 1975-10-06 | 1977-03-08 | 1995-10-06 | 0.0 yrs | 12 | |
| US3704070A | Direction determining system | Lockheed Martin Corp | Expired / Lapsed | 1971-05-24 | 1972-11-28 | 1991-05-24 | 0.0 yrs | 24 | |
| US3659285A | Television gaming apparatus and method | Lockheed Martin Corp | Expired / Lapsed | 1969-08-21 | 1972-04-25 | 1989-08-21 | 0.0 yrs | 20 | |
| US3622877A | Apparatus for testing modulator demodulator units for transmission errors and indicating the errors per power of 10 | Lockheed Martin Corp | Expired / Lapsed | 1969-11-07 | 1971-11-23 | 1989-11-07 | 0.0 yrs | 8 | |
| US3525330A | Surgical garment prescription method and apparatus | Lockheed Martin Corp | Expired / Lapsed | 1966-02-24 | 1970-08-25 | 1986-02-24 | 0.0 yrs | 0 | |
| US3509624A | Method of making multilayer printed circuits | Lockheed Martin Corp | Expired / Lapsed | 1967-09-11 | 1970-05-05 | 1987-09-11 | 0.0 yrs | 0 | |
| US3503012A | Optical differential interferometer discriminator for fm to am conversion | Lockheed Martin Corp | Expired / Lapsed | 1967-11-13 | 1970-03-24 | 1987-11-13 | 0.0 yrs | 0 | |
| US3498291A | Body signal sensing electrode apparatus | Lockheed Martin Corp | Expired / Lapsed | 1966-02-10 | 1970-03-03 | 1986-02-10 | 0.0 yrs | 0 | |
| US3463924A | Opposite circularly-polarized optical heterodyne detection system | Lockheed Martin Corp | Expired / Lapsed | 1966-12-16 | 1969-08-26 | 1986-12-16 | 0.0 yrs | 0 | |
| US3461416A | Pressure transducer utilizing semiconductor beam | Lockheed Martin Corp | Expired / Lapsed | 1967-12-04 | 1969-08-12 | 1987-12-04 | 0.0 yrs | 0 | |
| US3420739A | Closed ecological system for the support of animal life and the method thereof | Lockheed Martin Corp | Expired / Lapsed | 1963-09-23 | 1969-01-07 | 1983-09-23 | 0.0 yrs | 2 | |
| US3409007A | Body electrode support garment | Lockheed Martin Corp | Expired / Lapsed | 1965-11-26 | 1968-11-05 | 1985-11-26 | 0.0 yrs | 0 | |
| US3389393A | Low profile broadband microwave antenna system | Lockheed Martin Corp | Expired / Lapsed | 1966-02-18 | 1968-06-18 | 1986-02-18 | 0.0 yrs | 0 | |
| US3382460A | Linearly swept frequency generator | Lockheed Martin Corp | Expired / Lapsed | 1967-09-11 | 1968-05-07 | 1987-09-11 | 0.0 yrs | 2 | |
| US3308908A | Energy absorber | Lockheed Martin Corp | Expired / Lapsed | 1965-01-11 | 1967-03-14 | 1985-01-11 | 0.0 yrs | 2 |
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