Loewe Opta GmbH
Loewe OptaActive Patents
0
Total Holdings
20
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE1472015A1 | Universal portable tape recorder | Expired / Lapsed | 1965-05-15 | — | 0 | Details |
| GB522245A | Method for producing and activating a photo-electric struct… | Expired / Lapsed | 1938-02-07 | — | 0 | Details |
| GB505557A | Amplifier valve | Expired / Lapsed | 1937-10-08 | — | 0 | Details |
| GB451745A | Television | Expired / Lapsed | 1935-11-15 | — | 0 | Details |
| GB449470A | Improvements in radio receiving apparatus | Expired / Lapsed | 1934-11-24 | — | 0 | Details |
| GB411124A | Improvements in or relating to a method and apparatus for d… | Expired / Lapsed | 1932-08-29 | — | 0 | Details |
| US3612947A | Electronic timing apparatus for controlling the duration of… | Expired / Lapsed | 1969-11-07 | 1971-10-12 | 9 | Details |
| US2252442A | Method of dividing frequency | Expired / Lapsed | 1938-11-05 | 1941-08-12 | 0 | Details |
| US2175033A | Picture transmission | Expired / Lapsed | 1938-05-18 | 1939-10-03 | 0 | Details |
| US2173496A | Television transmitter | Expired / Lapsed | 1936-03-23 | 1939-09-19 | 0 | Details |
| US2152824A | Filter amplifier for television synchronization | Expired / Lapsed | 1936-04-02 | 1939-04-04 | 0 | Details |
| US2152821A | Cathode ray tube apparatus | Expired / Lapsed | 1935-02-09 | 1939-04-04 | 0 | Details |
| US2144779A | Relaxation oscillator with variable frequency | Expired / Lapsed | 1937-06-11 | 1939-01-24 | 0 | Details |
| US2137354A | Receiving connection system for televison receivers | Expired / Lapsed | 1935-04-15 | 1938-11-22 | 0 | Details |
| US2126286A | Braun tube | Expired / Lapsed | 1934-06-11 | 1938-08-09 | 0 | Details |
| US2096986A | Braun tube | Expired / Lapsed | 1933-04-17 | 1937-10-26 | 0 | Details |
| US2096985A | Television | Expired / Lapsed | 1932-04-27 | 1937-10-26 | 0 | Details |
| US2047533A | Television method | Expired / Lapsed | 1932-09-29 | 1936-07-14 | 0 | Details |
| US2047531A | Arrangement for transmission of ultra short waves | Expired / Lapsed | 1931-06-19 | 1936-07-14 | 0 | Details |
| US2024737A | Piezo-electric cell | Expired / Lapsed | 1933-08-08 | 1935-12-17 | 0 | Details |