Gerhard Benker
18Patents
6h-index
28Co-inventors
62Inventor score
Filing activity: Oct 30, 1984 → Oct 16, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5362008A | Cassette for supplying webs of photosensitive material to copying machines | Physics | 47 | Expired |
| US4627719A | Method and apparatus for reproducing the images of film frames | Physics | 25 | Expired |
| US5253011A | Copying method and copier for film | Physics | 14 | Expired |
| US4947205A | Method of and apparatus for positioning photographic originals in a copying station | Physics | 13 | Expired |
| US5555066A | Method of and apparatus for removing exposed film from cartridges | Physics | 8 | Expired |
| US4565442A | Method of and apparatus for copying photographic originals | Physics | 7 | Expired |
| US5850281A | Photograph copier using a diffusing means to enable scanning with a hard light and exposure with a softer light | Physics | 6 | Expired |
| US4647190A | Copier for photographic originals having different sizes | Physics | 6 | Expired |
| US4987440A | Method of and apparatus for positioning image areas of film | Physics | 5 | Expired |
| US5594525A | Method of printing photographs and apparatus for carrying out the method | Physics | 5 | Expired |
| US5303000A | Method of and apparatus for ascertaining the characteristics of shorter and longer sections of photographic material | Physics | 4 | Expired |
| US5132727A | Method of and arrangement for monitoring photographic copying apparatus | Physics | 3 | Expired |
| US5162840A | Apparatus for reproducing the images on sections of exposed and developed photographic films | Physics | 3 | Expired |
| US5138371A | Apparatus for manipulating roll films in copying machines | Physics | 2 | Expired |
| US5748286A | Method and apparatus for printing photographs of different formats | Physics | 2 | Expired |
| US6504624B1 | Photographic printing apparatus with means for generation of video signals | Physics | 1 | Expired |
| US5812898A | Compensating for evaporation from a photographic processing vessel | Physics | 1 | Expired |
| US5358581A | Method of and apparatus for applying flexible extensions to sections of photographic roll films | Emerging Cross-Sectional Technologies | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.