Patent Explorer
Browse, filter, and analyze 15 patents across global jurisdictions.
| Patent Number | Title | Assignee | Status | Filing Date | Grant Date | Expires | Remaining | Claims | Actions |
|---|---|---|---|---|---|---|---|---|---|
| US4016480A | Dual function coupling system and method | Zenith Electronics LLC | Expired / Lapsed | 1974-03-04 | 1977-04-05 | 1994-03-04 | 0.0 yrs | 16 | |
| US3319179A | Automatic frequency controlled signal generator | Zenith Electronics LLC | Expired / Lapsed | 1966-03-11 | 1967-05-09 | 1986-03-11 | 0.0 yrs | 2 | |
| US2992412A | Remote control system | Zenith Electronics LLC | Expired / Lapsed | 1959-04-23 | 1961-07-11 | 1979-04-23 | 0.0 yrs | 0 | |
| US2954545A | Remote control system | Zenith Electronics LLC | Expired / Lapsed | 1958-04-10 | 1960-09-27 | 1978-04-10 | 0.0 yrs | 0 | |
| US2939916A | Wave-signal translating circuits | Zenith Electronics LLC | Expired / Lapsed | 1956-02-07 | 1960-06-07 | 1976-02-07 | 0.0 yrs | 0 | |
| US2861206A | Color image reproducers | Zenith Electronics LLC | Expired / Lapsed | 1955-12-29 | 1958-11-18 | 1975-12-29 | 0.0 yrs | 2 | |
| US2708088A | Chassis mounting bracket | Zenith Electronics LLC | Expired / Lapsed | 1952-09-15 | 1955-05-10 | 1972-09-15 | 0.0 yrs | 0 | |
| US2561768A | Thermionic cathode activation | Zenith Electronics LLC | Expired / Lapsed | 1950-04-10 | 1951-07-24 | 1970-04-10 | 0.0 yrs | 0 | |
| US2540194A | Piezoelectric transducer and method for producing same | Zenith Electronics LLC | Expired / Lapsed | 1950-05-02 | 1951-02-06 | 1970-05-02 | 0.0 yrs | 0 | |
| US2540412A | Piezoelectric transducer and method for producing same | Zenith Electronics LLC | Expired / Lapsed | 1947-12-26 | 1951-02-06 | 1967-12-26 | 0.0 yrs | 0 | |
| US2538554A | Process of producing piezoelectric transducers | Zenith Electronics LLC | Expired / Lapsed | 1947-08-22 | 1951-01-16 | 1967-08-22 | 0.0 yrs | 2 | |
| US2455450A | Radio receiver noise suppression circuit | Zenith Electronics LLC | Expired / Lapsed | 1944-01-13 | 1948-12-07 | 1964-01-13 | 0.0 yrs | 0 | |
| US2449646A | Vacuum tube lock | Zenith Electronics LLC | Expired / Lapsed | 1945-11-23 | 1948-09-21 | 1965-11-23 | 0.0 yrs | 0 | |
| US2444218A | Frequency-modulated radio-phonograph combination | Zenith Electronics LLC | Expired / Lapsed | 1941-08-11 | 1948-06-29 | 1961-08-11 | 0.0 yrs | 0 | |
| US2323880A | Wave amplitude limiting device | Zenith Electronics LLC | Expired / Lapsed | 1940-12-26 | 1943-07-06 | 1960-12-26 | 0.0 yrs | 0 |