Siegfried Bartel
12Patents
6h-index
20Co-inventors
66Inventor score
Filing activity: Jan 21, 1975 → May 22, 2014
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4025025A | Apparatus for scanning a marked web | Physics | 28 | Expired |
| US4033693A | Light interrupter | Physics | 20 | Expired |
| US4218032A | Apparatus for convoluting webs onto rotary cores | Physics | 14 | Expired |
| US4330096A | Apparatus for winding or unwinding webs of photosensitive material or the like | Physics | 13 | Expired |
| US4018527A | Apparatus for controlling the movements of printing filters | Mechanical Engineering; Lighting; Heating | 10 | Expired |
| US4214689A | Automatic counteracting of transverse shift of a longitudinally transported strip | Performing Operations; Transporting | 6 | Expired |
| US4444489A | Apparatus for influencing the color of copying light in photographic copying machines or the like | Physics | 6 | Expired |
| US4194836A | Photographic copying machine with carrier structure _carrying format masks to and away from the copying station | Physics | 5 | Expired |
| US4353646A | Apparatus for positioning originals in photographic copying machines | Physics | 4 | Expired |
| US4135802A | Cassette for light-sensitive photographic material | Physics | 3 | Expired |
| US4441667A | Cassette for winding band-like photographic material | Physics | 2 | Expired |
| US10017023B2 | Method for controlling the level of an air-suspended motor vehicle | Performing Operations; Transporting | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.