Issued Patents All Time
Showing 26–38 of 38 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4296438 | Projection and scanning system for producing video signals from motion picture film and control system used therein | Otto Stemme, Wolfgang Ruf | 1981-10-20 |
| 4285455 | Mechanical film drive for driving motion picture film, particularly in projection and scanning systems | Otto Stemme, Wolfgang Ruf | 1981-08-25 |
| 4280142 | Optical reproducing device for a super-8 film reader | Otto Stemme, Wolfgang Ruf | 1981-07-21 |
| 4273428 | Digital exposure-duration control circuit with upper limit on exposure duration | Kurt Borowski, Istvan Cocron | 1981-06-16 |
| 4270854 | Photographic instant camera with magnetic recording capability | Otto Stemme, Frank Staudacher, Peter Lermann | 1981-06-02 |
| 4251142 | Light totalizing system for photographic camera provided with a shutter-diaphragm | Peter Lermann, Wolfgang Ruf | 1981-02-17 |
| 4251141 | Shutter-diaphragm system with light-totalizing circuit | Otto Stemme | 1981-02-17 |
| 4221474 | Photographic camera with focussing system which time-multiplexes the signals from plural photodetectors | Peter Lermann, Istvan Cocron, Kurt Borowski, Theodor Huber | 1980-09-09 |
| 4216418 | Speed regulation of D.C. motor using counter | Istvan Cocron | 1980-08-05 |
| 4214824 | Photographic-camera focussing system with comparator receiving required-and actual-setting data | Otto Stemme, Peter Lermann, Istvan Cocron | 1980-07-29 |
| 4192588 | Control system for controlling the diaphragm in a photographic camera | Alois Rieder, Bernhard von Fischern | 1980-03-11 |
| 4190343 | Photographic camera with exposure control utilizing a phase controllable crystal | — | 1980-02-26 |
| 4182554 | Motion-picture sound film projector | Richard Wick | 1980-01-08 |