Kaspar Wingender
11Patents
6h-index
19Co-inventors
59Inventor score
Filing activity: Oct 14, 1980 → Jun 5, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6013420A | Chromogenic process for the production of color images using a color photographic recording material, which contains embedded color developer compounds that can be activated by heat treatment | Physics | 14 | Expired |
| US4353972A | Light-sensitive photographic material comprising polymeric mordant layer | Physics | 12 | Expired |
| US5200301A | Color photographic recording material | Physics | 11 | Expired |
| US6033832A | Process for the production of a photographic image | Emerging Cross-Sectional Technologies | 11 | Expired |
| US4840871A | Color photographic heat development process | Physics | 7 | Expired |
| US4407929A | Color photographic recording material for the production of colored images by the dye diffusion transfer process | Physics | 7 | Expired |
| US4810615A | Colour photographic recording material containing a dye releasing compound for cyan dyes and a colour image produced with these dyes | Physics | 6 | Expired |
| US5441861A | Color photographic silver halide material | Physics | 4 | Expired |
| US4847179A | Photographic dye diffusion transfer process and color photographic recording material suitable for this process | Physics | 3 | Expired |
| US4877722A | Color photographic recording material developable by heat | Physics | 2 | Expired |
| US4894312A | Dye diffusion process with base precursor salts of strong organic bases and weak organic acids | Emerging Cross-Sectional Technologies | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.