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McDonnell Douglas Corp

McDonnell
Active Patents
0
Total Holdings
29

Patent Holdings

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Patent No. Title Status Filing Date Grant Date Claims Actions
US4609290A Passive homodyne demodulator and sensor system Expired / Lapsed 1983-06-06 1986-09-02 25 Details
US4534222A Fiber-optic seismic sensor Expired / Lapsed 1983-08-08 1985-08-13 21 Details
US4434479A Nonvolatile memory sensing system Expired / Lapsed 1981-11-02 1984-02-28 8 Details
US4376987A Threshold referenced MNOS sense amplifier Expired / Lapsed 1980-08-18 1983-03-15 32 Details
US4375680A Optical acoustic sensor Expired / Lapsed 1981-01-16 1983-03-01 32 Details
US4366377A Dual sensitivity optical sensor Expired / Lapsed 1980-09-29 1982-12-28 20 Details
US4299490A Phase nulling optical gyro Expired / Lapsed 1978-12-07 1981-11-10 86 Details
US4281379A Computer driven control system for a numerically controlled… Expired / Lapsed 1978-12-18 1981-07-28 19 Details
US4254477A Reconfigurable memory circuit Expired / Lapsed 1978-10-25 1981-03-03 39 Details
US4149235A Computer numerical control system for machine tool Expired / Lapsed 1976-12-27 1979-04-10 10 Details
US4092716A Control means and method for controlling an object Expired / Lapsed 1975-07-11 1978-05-30 29 Details
US4013832A Solid state image modulator Expired / Lapsed 1975-07-28 1977-03-22 13 Details
US4007123A Fire resistant functional fluid compositions Expired / Lapsed 1974-10-15 1977-02-08 29 Details
US3996673A Image generating means Expired / Lapsed 1975-05-29 1976-12-14 29 Details
US3742223A Wide angle lateral photo-detector means Expired / Lapsed 1970-05-25 1973-06-26 20 Details
US3736436A Electret pressure transducer Expired / Lapsed 1971-11-04 1973-05-29 6 Details
US3719084A Means for separating organics containing from one to twenty… Expired / Lapsed 1970-09-21 1973-03-06 0 Details
US3703413A Flexible inorganic fibers and battery electrode containing … Expired / Lapsed 1969-12-11 1972-11-21 0 Details
US3675949A Coupling fitting for connecting two pipes Expired / Lapsed 1970-05-18 1972-07-11 10 Details
US3575053A Cryogenic linear temperature sensor Expired / Lapsed 1968-07-11 1971-04-13 13 Details
US3572779A Coupling fitting for connecting two parts Expired / Lapsed 1968-06-24 1971-03-30 11 Details
US3527880A Pseudo stereo-optical observation means Expired / Lapsed 1967-01-25 1970-09-08 0 Details
US3478695A Pulsatile heart pump Expired / Lapsed 1968-02-13 1969-11-18 0 Details
US3456256A Asynchronous collision avoidance system Expired / Lapsed 1967-06-21 1969-07-15 0 Details
US3448621A Electric gating system to eliminate contact interference Expired / Lapsed 1966-03-23 1969-06-10 0 Details
US3437507A Plating of substrates Expired / Lapsed 1965-07-16 1969-04-08 0 Details
US3432197A Slider latch Expired / Lapsed 1966-06-30 1969-03-11 0 Details
US3423226A Plating of non-metallic bodies Expired / Lapsed 1965-06-28 1969-01-21 0 Details
US3403257A Light beam demodulator Expired / Lapsed 1963-04-02 1968-09-24 2 Details