Westinghouse Electric Corp
WestinghouActive Patents
0
Total Holdings
74
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4402055A | Automatic test system utilizing interchangeable test devices | Expired / Lapsed | 1981-01-27 | 1983-08-30 | 11 | Details |
| US4402054A | Method and apparatus for the automatic diagnosis of system … | Expired / Lapsed | 1980-10-15 | 1983-08-30 | 9 | Details |
| US3892934A | Auxiliary contact interlock for preventing electrical disco… | Expired / Lapsed | 1974-03-14 | 1975-07-01 | 5 | Details |
| US3735032A | Television pick-up tube device | Expired / Lapsed | 1969-04-09 | 1973-05-22 | 25 | Details |
| US3633217A | Electromagnetic energy converter for pulsing an implantable… | Expired / Lapsed | 1969-07-01 | 1972-01-11 | 14 | Details |
| US3590339A | Gate controlled switch transistor drive integrated circuit … | Expired / Lapsed | 1970-01-30 | 1971-06-29 | 11 | Details |
| US3444399A | Temperature controlled electronic devices | Expired / Lapsed | 1965-09-24 | 1969-05-13 | 0 | Details |
| US3372740A | Lighting luminaire which is liquid cooled | Expired / Lapsed | 1966-01-12 | 1968-03-12 | 2 | Details |
| US3312943A | Computer organization | Expired / Lapsed | 1963-02-28 | 1967-04-04 | 1 | Details |
| US3296452A | Load regulation | Expired / Lapsed | 1963-09-16 | 1967-01-03 | 1 | Details |
| US3195043A | Hall effect proximity transducer | Expired / Lapsed | 1961-05-19 | 1965-07-13 | 2 | Details |
| US3189805A | Digital control apparatus having actual-position and error … | Expired / Lapsed | 1960-05-20 | 1965-06-15 | 2 | Details |
| US3148316A | Contouring control apparatus | Expired / Lapsed | 1962-01-24 | 1964-09-08 | 2 | Details |
| US3107306A | Anticoincident pulse responsive circuit comprising logic co… | Expired / Lapsed | 1959-07-01 | 1963-10-15 | 2 | Details |
| US3099777A | Digital position control servosystem | Expired / Lapsed | 1960-07-08 | 1963-07-30 | 2 | Details |
| US2985773A | Differential frequency rate circuit comprising logic compon… | Expired / Lapsed | 1959-01-28 | 1961-05-23 | 0 | Details |
| US2981699A | Positive temperature coefficient thermistor materials | Expired / Lapsed | 1959-12-28 | 1961-04-25 | 2 | Details |
| US2962702A | Remote metering | Expired / Lapsed | 1956-02-20 | 1960-11-29 | 0 | Details |
| US2957109A | Overcurrent protection devices | Expired / Lapsed | 1958-06-10 | 1960-10-18 | 0 | Details |
| US2879458A | Diode matrix | Expired / Lapsed | 1957-10-30 | 1959-03-24 | 0 | Details |
| US2845552A | Electric motor | Expired / Lapsed | 1955-09-26 | 1958-07-29 | 0 | Details |
| US2757297A | Time delay devices | Expired / Lapsed | 1955-06-07 | 1956-07-31 | 0 | Details |
| US2727160A | Pulse generator | Expired / Lapsed | 1955-01-18 | 1955-12-13 | 0 | Details |
| US2722649A | Arcless switching device | Expired / Lapsed | 1954-08-09 | 1955-11-01 | 0 | Details |
| US2711982A | Method of making rolled phenolic resinbonded paper tubing | Expired / Lapsed | 1951-02-21 | 1955-06-28 | 2 | Details |
| US2699143A | Apparatus for improved primer dipping of photoflash lamp le… | Expired / Lapsed | 1952-01-24 | 1955-01-11 | 0 | Details |
| US2608536A | Cellular resins | Expired / Lapsed | 1950-01-17 | 1952-08-26 | 2 | Details |
| US2523155A | Glass-to-metal sealing | Expired / Lapsed | 1944-05-24 | 1950-09-19 | 0 | Details |
| US2498282A | Torque measuring device for shafts | Expired / Lapsed | 1946-05-15 | 1950-02-21 | 0 | Details |
| US2484208A | Remote-control system | Expired / Lapsed | 1947-03-27 | 1949-10-11 | 0 | Details |
| US2484214A | Method of making magnetic cores | Expired / Lapsed | 1945-12-15 | 1949-10-11 | 0 | Details |
| US2459653A | Insulated conductor | Expired / Lapsed | 1945-09-08 | 1949-01-18 | 0 | Details |
| US2454180A | Frame structure of dynamoelectric machines | Expired / Lapsed | 1947-08-28 | 1948-11-16 | 0 | Details |
| US2414525A | Process of applying insulation | Expired / Lapsed | 1944-02-25 | 1947-01-21 | 0 | Details |
| US2399338A | Method of laminating porous sheet materials | Expired / Lapsed | 1944-07-07 | 1946-04-30 | 0 | Details |
| US2394398A | Coaxial line seal | Expired / Lapsed | 1942-03-20 | 1946-02-05 | 0 | Details |
| US2384792A | Impulse metering system | Expired / Lapsed | 1942-12-03 | 1945-09-18 | 0 | Details |
| US2337833A | Reflector lamp | Expired / Lapsed | 1940-09-27 | 1943-12-28 | 0 | Details |
| US2320922A | High-voltage coil insulation | Expired / Lapsed | 1940-10-16 | 1943-06-01 | 0 | Details |
| US2310138A | Electrical switching apparatus | Expired / Lapsed | 1941-10-23 | 1943-02-02 | 0 | Details |
| US2308609A | Self-aligning bearing | Expired / Lapsed | 1940-07-06 | 1943-01-19 | 0 | Details |
| US2300999A | Electromagnetic inspection system | Expired / Lapsed | 1940-10-30 | 1942-11-03 | 0 | Details |
| US2298210A | Seam welding timer | Expired / Lapsed | 1939-07-13 | 1942-10-06 | 0 | Details |
| US2296266A | Liquid mixing device | Expired / Lapsed | 1940-11-22 | 1942-09-22 | 0 | Details |
| US2288788A | Method of treating the heat-responsive elements of thermost… | Expired / Lapsed | 1940-11-22 | 1942-07-07 | 0 | Details |
| US2286161A | Electrical resistance unit | Expired / Lapsed | 1939-12-19 | 1942-06-09 | 0 | Details |
| US2282198A | Photoelectric differential analyzer | Expired / Lapsed | 1939-07-13 | 1942-05-05 | 0 | Details |
| US2276646A | Supervisory control system | Expired / Lapsed | 1939-01-18 | 1942-03-17 | 0 | Details |
| US2273213A | Method of charging refrigerating systems | Expired / Lapsed | 1940-05-16 | 1942-02-17 | 0 | Details |
| US2265296A | Magnetic modulator | Expired / Lapsed | 1940-08-16 | 1941-12-09 | 0 | Details |
| US2262416A | Combination lighting unit | Expired / Lapsed | 1938-02-26 | 1941-11-11 | 0 | Details |
| US2259329A | Protective system for vapor electric devices | Expired / Lapsed | 1940-08-02 | 1941-10-14 | 0 | Details |
| US2224724A | Carbon brush and method of making | Expired / Lapsed | 1938-02-17 | 1940-12-10 | 0 | Details |
| US2217422A | Glass-metal seal | Expired / Lapsed | 1936-04-24 | 1940-10-08 | 0 | Details |
| US2144519A | Radiant energy detector | Expired / Lapsed | 1937-03-06 | 1939-01-17 | 0 | Details |
| US1997671A | Propeller | Expired / Lapsed | 1930-10-30 | 1935-04-16 | 0 | Details |
| US1981040A | Regulating system | Expired / Lapsed | 1932-11-12 | 1934-11-20 | 0 | Details |
| US1939067A | Instantaneous pressure recorder | Expired / Lapsed | 1929-01-05 | 1933-12-12 | 0 | Details |
| US1922193A | Signal transmission system | Expired / Lapsed | 1927-07-30 | 1933-08-15 | 0 | Details |
| US1877561A | Transmitting circuit | Expired / Lapsed | 1928-09-13 | 1932-09-13 | 0 | Details |
| US1822075A | Electrical measuring instrument | Expired / Lapsed | 1929-04-03 | 1931-09-08 | 0 | Details |
| US1788111A | Street-lighting system | Expired / Lapsed | 1928-08-22 | 1931-01-06 | 0 | Details |
| US1710755A | Generator-voltage regulator | Expired / Lapsed | 1927-12-09 | 1929-04-30 | 0 | Details |
| US1699779A | Process for improving tensile strength of fabric materials | Expired / Lapsed | 1927-07-15 | 1929-01-22 | 0 | Details |
| US1686638A | Slip indicator | Expired / Lapsed | 1921-03-24 | 1928-10-09 | 0 | Details |
| US1635541A | Inductance device | Expired / Lapsed | 1925-07-24 | 1927-07-12 | 0 | Details |
| US1599574A | Blast-furnace bell hoist | Expired / Lapsed | 1924-10-04 | 1926-09-14 | 0 | Details |
| US1575010A | Limit switch | Expired / Lapsed | 1922-04-29 | 1926-03-02 | 0 | Details |
| US1448401A | Fluid-pressure regulator | Expired / Lapsed | 1920-09-24 | 1923-03-13 | 0 | Details |
| US1435255A | Change-over switch | Expired / Lapsed | 1919-07-05 | 1922-11-14 | 0 | Details |
| US1400055A | Shaft-bearing | Expired / Lapsed | 1917-12-13 | 1921-12-13 | 0 | Details |
| US1299252A | Measuring device. | Expired / Lapsed | 1918-04-04 | 1919-04-01 | 0 | Details |
| US1275003A | Dynamo-electric machine. | Expired / Lapsed | 1915-08-09 | 1918-08-06 | 0 | Details |
| US1007441A | Electric heater and process of constructing the same. | Expired / Lapsed | 1909-03-15 | 1911-10-31 | 0 | Details |