Wolfram Betzold
6Patents
3h-index
20Co-inventors
57Inventor score
Filing activity: Nov 8, 1976 → Dec 11, 2001
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4731639A | Microfilm pickup camera with marking means for screened originals | Performing Operations; Transporting | 15 | Expired |
| US6495811B2 | Induction heating device and method, and processor | Electricity | 7 | Expired |
| US6325474A | Device for writing on thermographic material | Performing Operations; Transporting | 4 | Expired |
| US4080066A | Apparatus for prereading film frames or the like | Physics | 3 | Expired |
| US4998136A | Continuous microfilming apparatus | Performing Operations; Transporting | 1 | Expired |
| US5041867A | Transport device for microfilm passage camera | Physics | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.