Josef Helmberger
7Patents
4h-index
6Co-inventors
46Inventor score
Filing activity: Aug 1, 1973 → Apr 30, 1984
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4007489A | Method and apparatus for creating color copies of an original by an electrostatic charging process | Physics | 29 | Expired |
| US4017891A | Method and equipment for line-by-line recording of color component images on a reproduction carrier | Physics | 8 | Expired |
| US3984187A | Scanning and reproduction of pictorial images | Physics | 7 | Expired |
| US4605954A | Method of and arrangement for adjusting color saturation in a video printer | Electricity | 5 | Expired |
| US4066355A | Solid-state color-copying scanner | Electricity | 2 | Expired |
| US4031550A | Film scanner | Electricity | 1 | Expired |
| US3965291A | Method and arrangement for scanning a sequence of images | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.