Zenith Electronics LLC
Zenith EleActive Patents
0
Total Holdings
66
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| US4400735A | Multi-component video system controller | Expired / Lapsed | 1981-07-10 | 1983-08-23 | 14 | Details |
| US4016480A | Dual function coupling system and method | Expired / Lapsed | 1974-03-04 | 1977-04-05 | 16 | Details |
| US3832483A | Line sequential color video encoding with equally contribut… | Expired / Lapsed | 1972-12-27 | 1974-08-27 | 26 | Details |
| US3796495A | Apparatus and methods for scanning phase profilometry | Expired / Lapsed | 1972-05-30 | 1974-03-12 | 8 | Details |
| US3768019A | Remote control system | Expired / Lapsed | 1972-02-02 | 1973-10-23 | 8 | Details |
| US3745812A | Acoustic imaging apparatus | Expired / Lapsed | 1971-07-07 | 1973-07-17 | 19 | Details |
| US3744039A | Single-laser simultaneous multiple-channel character genera… | Expired / Lapsed | 1971-09-09 | 1973-07-03 | 29 | Details |
| US3715524A | Electro-optical groove tracking apparatus for video reprodu… | Expired / Lapsed | 1972-04-20 | 1973-02-06 | 7 | Details |
| US3660668A | Image intensifier employing channel multiplier plate | Expired / Lapsed | 1969-09-25 | 1972-05-02 | 7 | Details |
| US3657473A | Holographic image recording and reproducing system | Expired / Lapsed | 1970-05-15 | 1972-04-18 | 12 | Details |
| US3654574A | Acoustic-wave transmitting system having curvilinear transd… | Expired / Lapsed | 1970-08-18 | 1972-04-04 | 4 | Details |
| US3586120A | Sound propagating apparatus | Expired / Lapsed | 1968-07-16 | 1971-06-22 | 18 | Details |
| US3582783A | Multiple-function remote control system | Expired / Lapsed | 1968-12-19 | 1971-06-01 | 2 | Details |
| US3571507A | Optical apparatus for developing display information signal… | Expired / Lapsed | 1968-05-15 | 1971-03-16 | 11 | Details |
| US3517116A | Arrangement for converting a pal color television signal to… | Expired / Lapsed | 1967-07-21 | 1970-06-23 | 0 | Details |
| US3514534A | Wide-aperture laser beam modulating and scanning system | Expired / Lapsed | 1966-12-09 | 1970-05-26 | 0 | Details |
| US3506835A | Photo-detector signal-translating device | Expired / Lapsed | 1967-08-01 | 1970-04-14 | 0 | Details |
| US3506334A | Phased array-type beam scanning | Expired / Lapsed | 1966-02-17 | 1970-04-14 | 0 | Details |
| US3488437A | Video display systems | Expired / Lapsed | 1966-12-09 | 1970-01-06 | 0 | Details |
| US3442269A | Defibrillator and control circuit | Expired / Lapsed | 1965-12-20 | 1969-05-06 | 0 | Details |
| US3396232A | Interrogating system for subscription television receivers | Expired / Lapsed | 1964-07-01 | 1968-08-06 | 0 | Details |
| US3389703A | Defibrillator electrode or the like | Expired / Lapsed | 1966-02-03 | 1968-06-25 | 2 | Details |
| US3389704A | Discharge circuit for a defibrillator | Expired / Lapsed | 1965-12-06 | 1968-06-25 | 2 | Details |
| US3319179A | Automatic frequency controlled signal generator | Expired / Lapsed | 1966-03-11 | 1967-05-09 | 2 | Details |
| US3286035A | Multivibrator detector for stereophonic frequency modulatio… | Expired / Lapsed | 1964-09-24 | 1966-11-15 | 2 | Details |
| US3059138A | Modulation expander and coupler for parametric amplifiers | Expired / Lapsed | 1959-09-11 | 1962-10-16 | 0 | Details |
| US2992412A | Remote control system | Expired / Lapsed | 1959-04-23 | 1961-07-11 | 0 | Details |
| US2976533A | Radio astronomy antenna having spherical reflector formed i… | Expired / Lapsed | 1954-11-12 | 1961-03-21 | 0 | Details |
| US2959740A | Parametric amplifier modulation expander | Expired / Lapsed | 1959-05-01 | 1960-11-08 | 0 | Details |
| US2954545A | Remote control system | Expired / Lapsed | 1958-04-10 | 1960-09-27 | 0 | Details |
| US2939916A | Wave-signal translating circuits | Expired / Lapsed | 1956-02-07 | 1960-06-07 | 0 | Details |
| US2939040A | Scanning generator | Expired / Lapsed | 1957-08-30 | 1960-05-31 | 0 | Details |
| US2866962A | Subscription television code determining arrangement | Expired / Lapsed | 1955-12-06 | 1958-12-30 | 0 | Details |
| US2861206A | Color image reproducers | Expired / Lapsed | 1955-12-29 | 1958-11-18 | 2 | Details |
| US2852598A | Subscription television system | Expired / Lapsed | 1953-07-08 | 1958-09-16 | 0 | Details |
| US2816156A | Subscription television system | Expired / Lapsed | 1951-06-08 | 1957-12-10 | 0 | Details |
| US2802100A | Transistor receiver with constant impedance manual-gain con… | Expired / Lapsed | 1955-08-15 | 1957-08-06 | 0 | Details |
| US2779818A | Demodulating systems for color television | Expired / Lapsed | 1955-05-02 | 1957-01-29 | 0 | Details |
| US2755333A | Subscription television system | Expired / Lapsed | 1950-03-28 | 1956-07-17 | 0 | Details |
| US2708088A | Chassis mounting bracket | Expired / Lapsed | 1952-09-15 | 1955-05-10 | 0 | Details |
| US2702874A | Deflection system | Expired / Lapsed | 1950-12-13 | 1955-02-22 | 0 | Details |
| US2664460A | Subscription type television system | Expired / Lapsed | 1950-04-26 | 1953-12-29 | 0 | Details |
| US2656407A | Subscriber signaling system | Expired / Lapsed | 1949-02-12 | 1953-10-20 | 0 | Details |
| US2656406A | Subscriber television system | Expired / Lapsed | 1948-07-02 | 1953-10-20 | 0 | Details |
| US2656405A | Air key subscriber television system | Expired / Lapsed | 1948-06-28 | 1953-10-20 | 0 | Details |
| US2640889A | Piezoelectric transducer | Expired / Lapsed | 1949-05-17 | 1953-06-02 | 0 | Details |
| US2619437A | Primary cells | Expired / Lapsed | 1948-05-21 | 1952-11-25 | 0 | Details |
| US2612552A | Subscription type signaling system | Expired / Lapsed | 1949-06-10 | 1952-09-30 | 0 | Details |
| US2596117A | Frequency converter system | Expired / Lapsed | 1948-11-06 | 1952-05-13 | 0 | Details |
| US2573349A | Subscriber signaling system | Expired / Lapsed | 1949-12-09 | 1951-10-30 | 0 | Details |
| US2570187A | Subscriber signaling system | Expired / Lapsed | 1948-07-21 | 1951-10-09 | 0 | Details |
| US2561768A | Thermionic cathode activation | Expired / Lapsed | 1950-04-10 | 1951-07-24 | 0 | Details |
| US2547598A | Subscription image transmission system and apparatus | Expired / Lapsed | 1947-09-13 | 1951-04-03 | 0 | Details |
| US2540194A | Piezoelectric transducer and method for producing same | Expired / Lapsed | 1950-05-02 | 1951-02-06 | 0 | Details |
| US2540412A | Piezoelectric transducer and method for producing same | Expired / Lapsed | 1947-12-26 | 1951-02-06 | 0 | Details |
| US2538554A | Process of producing piezoelectric transducers | Expired / Lapsed | 1947-08-22 | 1951-01-16 | 2 | Details |
| US2465416A | Resonant circuit and radiator | Expired / Lapsed | 1943-10-02 | 1949-03-29 | 0 | Details |
| US2459325A | Bone conduction unit | Expired / Lapsed | 1944-10-27 | 1949-01-18 | 0 | Details |
| US2457479A | Sunshade mounting | Expired / Lapsed | 1944-02-21 | 1948-12-28 | 0 | Details |
| US2455450A | Radio receiver noise suppression circuit | Expired / Lapsed | 1944-01-13 | 1948-12-07 | 0 | Details |
| US2449646A | Vacuum tube lock | Expired / Lapsed | 1945-11-23 | 1948-09-21 | 0 | Details |
| US2444218A | Frequency-modulated radio-phonograph combination | Expired / Lapsed | 1941-08-11 | 1948-06-29 | 0 | Details |
| US2406583A | Portable apparatus | Expired / Lapsed | 1943-04-12 | 1946-08-27 | 0 | Details |
| US2383463A | Spread band tuning device | Expired / Lapsed | 1942-10-28 | 1945-08-28 | 0 | Details |
| US2323880A | Wave amplitude limiting device | Expired / Lapsed | 1940-12-26 | 1943-07-06 | 0 | Details |
| US2310720A | Antenna coupling and tuning system for communication or bro… | Expired / Lapsed | 1941-04-21 | 1943-02-09 | 0 | Details |