Patent Explorer
Browse, filter, and analyze 7 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4609290A | Passive homodyne demodulator and sensor system | McDonnell Douglas Corp | Expired / Lapsed | 1983-06-06 | 1986-09-02 | 2003-06-06 | 0.0 yrs | 25 | |
| US4534222A | Fiber-optic seismic sensor | McDonnell Douglas Corp | Expired / Lapsed | 1983-08-08 | 1985-08-13 | 2003-08-08 | 0.0 yrs | 21 | |
| US4299490A | Phase nulling optical gyro | McDonnell Douglas Corp | Expired / Lapsed | 1978-12-07 | 1981-11-10 | 1998-12-07 | 0.0 yrs | 86 | |
| US4149235A | Computer numerical control system for machine tool | McDonnell Douglas Corp | Expired / Lapsed | 1976-12-27 | 1979-04-10 | 1996-12-27 | 0.0 yrs | 10 | |
| US3736436A | Electret pressure transducer | McDonnell Douglas Corp | Expired / Lapsed | 1971-11-04 | 1973-05-29 | 1991-11-04 | 0.0 yrs | 6 | |
| US3478695A | Pulsatile heart pump | McDonnell Douglas Corp | Expired / Lapsed | 1968-02-13 | 1969-11-18 | 1988-02-13 | 0.0 yrs | 0 | |
| US3403257A | Light beam demodulator | McDonnell Douglas Corp | Expired / Lapsed | 1963-04-02 | 1968-09-24 | 1983-04-02 | 0.0 yrs | 2 |