John C. Venthem
5Patents
4h-index
5Co-inventors
42Inventor score
Filing activity: Dec 11, 1987 → Jul 21, 1994
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5214448A | Belt-drive tensioning system which uses a pivoting member | Physics | 25 | Expired |
| US5267802A | Ribbon cassette storage and transfer apparatus for a printer | Performing Operations; Transporting | 20 | Expired |
| US5405205A | Sheet medium transport system, particularly for printers and plotters | Performing Operations; Transporting | 9 | Expired |
| US4888710A | Pen tip position detector | Physics | 8 | Expired |
| US5333005A | Apparatus for raising and lowering plotter marking devices | Physics | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.