Karl Zappe
5Patents
1h-index
10Co-inventors
44Inventor score
Filing activity: Apr 18, 2001 → Dec 18, 2013
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6556804B1 | Printer or copier for simultaneously printing a supporting material on both sides | Physics | 11 | Expired |
| US7801472B2 | Device and method for printing on both faces of a recording medium, comprising a charge shifting and recharging device | Physics | 1 | Active |
| US7333756B2 | Method and device for the transport of toner material from a reservoir | Physics | 1 | Expired |
| US7787811B2 | Continuous intermediate image carrier for an electrophotographic printer or copier | Physics | 0 | Expired |
| US9277100B2 | Method to control a color printer or color copier with the aid of additional printed positioning markings | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.