Walter Kopp
38Patents
9h-index
30Co-inventors
75Inventor score
Filing activity: Jan 15, 1980 → Dec 10, 2009
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6246856A | Printer and copier device and method for performance-adapted, monochrome and/or chromatic, single-sided or both-sided printing of a recording medium | Physics | 28 | Expired |
| US5557388A | Printing or copying machine having a cooling device for the recording substrate | Physics | 14 | Expired |
| US4306800A | Apparatus for controlling the position of a recording carrier and transport thereof relative to an intermediate carrier of a printing or copying devices | Physics | 12 | Expired |
| US4469427A | Developing station for developing charge images generated on a charge image carrier | Physics | 12 | Expired |
| US4460266A | Developing device for developing charge images on a charge image carrier | Physics | 11 | Expired |
| US4465112A | Device for filling toner from a container into a reservoir | Physics | 11 | Expired |
| US4584457A | Device for arc welding, in particular submerged-arc welding, with one or several fusible electrodes | Performing Operations; Transporting | 10 | Expired |
| US5495324A | Thermal fixing system for recording media of a printer or copier device that are printed on one or both sides | Physics | 10 | Expired |
| US5790924A | Multi-functional printer device having modular structure | Physics | 10 | Expired |
| US4451133A | Device for removing the developer mix from a developing station | Physics | 9 | Expired |
| US5568241A | Thermofixing device for a printing or copying machines having a low temperature preheating saddle | Physics | 8 | Expired |
| US5758227A | Thermal fixing system for recording media of a printer or copier device that are printed on one or both sides | Physics | 8 | Expired |
| US4415257A | Pressure device for a web-like image-receiving material | Physics | 7 | Expired |
| US5491545A | Electrophotographic printer for reel paper having a thermal print fixing station | Physics | 6 | Expired |
| US5797079A | Printer means for printing front and/or back side of a band-shaped recording medium | Physics | 6 | Expired |
| US6430381B1 | Thermal fixing system for recording media of a printer or copier device that are printed on one or both sides | Physics | 6 | Expired |
| US5839038A | Electrophotographic printer for reel paper having a thermal print fixing station | Physics | 6 | Expired |
| US5974297A | Printer means for printing front and/or back side of a band-shaped recording medium | Physics | 5 | Expired |
| US4511639A | Method for regenerating the carrier particles of a two-component developer consisting of carrier particles and toner | Physics | 5 | Expired |
| US4465357A | Drive system for a photocopier | Physics | 5 | Expired |
| US5791794A | Transfer printing station for parallel processing of two recording medium webs | Physics | 5 | Expired |
| US6055408A | Device for the positionally exact synchronization of the parallel course of recording medium webs in an electrographic printer device | Physics | 5 | Expired |
| US5884126A | Apparatus and method for transporting finely powdered toner material | Physics | 5 | Expired |
| US5987299A | Electrographic printer with adjustable corona device | Physics | 4 | Expired |
| US5323944A | Arrangement for the lateral positioning of a recording medium in a printer or photocopier | Physics | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.