Zeiss Ikon AG
Zeiss IkonActive Patents
0
Total Holdings
41
Patent Holdings
Filter in Explorer →| Patent No. | Title | Status | Filing Date | Grant Date | Claims | Actions |
|---|---|---|---|---|---|---|
| DE7612488U1 | LOCK WORKING WITH MAGNETIC MEANS | Expired / Lapsed | 1975-10-17 | — | 0 | Details |
| DE1922924A1 | Device for presenting an image in a motor vehicle | Expired / Lapsed | 1969-05-06 | — | 0 | Details |
| DE1260819B | Image projector with rotating heat protection filter | Expired / Lapsed | 1964-09-16 | — | 0 | Details |
| GB741246A | Improvements in or relating to illuminating devices for opt… | Expired / Lapsed | 1953-04-23 | — | 0 | Details |
| GB496329A | Improvements in or relating to polarisation filters | Expired / Lapsed | 1937-11-16 | — | 0 | Details |
| GB478557A | Improvements in or relating to polarising devices | Expired / Lapsed | 1937-08-06 | — | 0 | Details |
| FR2103674A5 | FR2103674A5 - - Google Patents | Expired / Lapsed | 1971-07-09 | 1972-04-14 | 0 | Details |
| US3452656A | Photometer with photoelectric transformer | Expired / Lapsed | 1965-10-04 | 1969-07-01 | 0 | Details |
| US3388648A | Photographic camera with exposure meter or exposure meter o… | Expired / Lapsed | 1965-06-25 | 1968-06-18 | 0 | Details |
| US3143054A | Device for adjusting light measuring instruments, particula… | Expired / Lapsed | 1961-06-19 | 1964-08-04 | 2 | Details |
| US2862066A | Means for recording and reproducing acoustic signals | Expired / Lapsed | 1955-08-03 | 1958-11-25 | 0 | Details |
| US2862126A | Radiation sensitive semi-conductive layer of amorphous sele… | Expired / Lapsed | 1953-08-28 | 1958-11-25 | 2 | Details |
| DE903275C | Process for the production of stereoscopic measuring scales | Expired / Lapsed | 1943-08-05 | 1954-02-04 | 0 | Details |
| DE828019C | Method and device for the selection of the color filter for… | Expired / Lapsed | 1949-11-29 | 1952-01-14 | 0 | Details |
| US2268338A | Stereoscopic attachment for projectors | Expired / Lapsed | 1939-02-24 | 1941-12-30 | 0 | Details |
| US2254548A | Method and means for testing the adjustment of photographic… | Expired / Lapsed | 1939-12-18 | 1941-09-02 | 0 | Details |
| US2246817A | Photometer | Expired / Lapsed | 1938-10-12 | 1941-06-24 | 0 | Details |
| US2241041A | Means for projecting stereoscopic pictures | Expired / Lapsed | 1939-02-11 | 1941-05-06 | 0 | Details |
| US2234806A | Method of electronoptically enlarging images | Expired / Lapsed | 1938-02-28 | 1941-03-11 | 0 | Details |
| US2222292A | Photoelectric exposure meter | Expired / Lapsed | 1940-02-14 | 1940-11-19 | 0 | Details |
| US2222300A | Means for projecting stereoscopic pictures | Expired / Lapsed | 1938-10-20 | 1940-11-19 | 0 | Details |
| US2193459A | Photographic objective mount | Expired / Lapsed | 1939-01-18 | 1940-03-12 | 0 | Details |
| US2190713A | Piezoelectric pressure indicator | Expired / Lapsed | 1938-03-17 | 1940-02-20 | 0 | Details |
| US2187057A | Finder device | Expired / Lapsed | 1938-05-18 | 1940-01-16 | 0 | Details |
| US2186123A | Illuminating system | Expired / Lapsed | 1938-02-21 | 1940-01-09 | 0 | Details |
| US2185018A | Polarizing structure | Expired / Lapsed | 1937-12-30 | 1939-12-26 | 0 | Details |
| US2183249A | Illuminating device for projectors | Expired / Lapsed | 1938-11-05 | 1939-12-12 | 0 | Details |
| US2183256A | Photoelectric cell | Expired / Lapsed | 1937-07-21 | 1939-12-12 | 0 | Details |
| US2159568A | Picture-translating tube | Expired / Lapsed | 1937-05-03 | 1939-05-23 | 0 | Details |
| FR839173A | Photographic enlargement and reproduction apparatus | Expired / Lapsed | 1938-06-10 | 1939-03-28 | 0 | Details |
| US2149101A | Cathode ray tube | Expired / Lapsed | 1937-05-03 | 1939-02-28 | 0 | Details |
| US2133132A | Method and means for reproducing balanced sound records | Expired / Lapsed | 1937-11-04 | 1938-10-11 | 0 | Details |
| US2120100A | Indicator device | Expired / Lapsed | 1934-10-26 | 1938-06-07 | 0 | Details |
| US2117429A | Camera | Expired / Lapsed | 1936-11-05 | 1938-05-17 | 0 | Details |
| US2104094A | Photographic camera | Expired / Lapsed | 1936-07-30 | 1938-01-04 | 0 | Details |
| US2090387A | Photoelectric tube | Expired / Lapsed | 1936-03-30 | 1937-08-17 | 0 | Details |
| FR807273A | Large base rangefinder | Expired / Lapsed | 1936-06-10 | 1937-01-08 | 0 | Details |
| US1939434A | Oscillograph | Expired / Lapsed | 1932-05-14 | 1933-12-12 | 0 | Details |
| DE481830C | Projection lens | Expired / Lapsed | 1927-12-18 | 1929-08-31 | 0 | Details |
| US1713277A | Film-spool construction | Expired / Lapsed | 1928-05-03 | 1929-05-14 | 0 | Details |
| DE473804C | Apparatus for dactyloscopy | Expired / Lapsed | 1926-07-01 | 1929-03-23 | 0 | Details |