Gunther Schenk
16Patents
6h-index
15Co-inventors
59Inventor score
Filing activity: Feb 22, 1982 → Jun 5, 1998
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4396710A | Photographic recording material with metal complexable, heterocyclic azo dye | Physics | 20 | Expired |
| US4816372A | Heat development process and color photographic recording material suitable for this process | Physics | 18 | Expired |
| 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 |
| US4840871A | Color photographic heat development process | Physics | 7 | Expired |
| US4524123A | Chelatable 4-thienyl imidazole azo dyes, their use in color photographic recording material | Chemistry; Metallurgy | 6 | Expired |
| US4865940A | Photographic recording material | Physics | 6 | Expired |
| US4689286A | Color photographic recording material developable by heat treatment | Physics | 6 | Expired |
| US4770970A | Photographic heat development process and auxiliary sheet suitable therein | Physics | 4 | Expired |
| US4418143A | Color photographic recording material | Physics | 4 | Expired |
| US4847179A | Photographic dye diffusion transfer process and color photographic recording material suitable for this process | Physics | 3 | Expired |
| US4461827A | Color photographic recording material containing a non-diffusible dye releaser from which a complexible azo dye is released during development | Physics | 3 | Expired |
| US4740446A | Heat development process and color photographic recording material suitable for this process | Physics | 3 | Expired |
| US4393132A | Photographic recording material with arylazocyanoacetic ester dye releasers | Physics | 2 | Expired |
| US4810628A | Color photographic recording material capable of being developed by heat treatment | Physics | 2 | Expired |
| US4732839A | Alkali metal alginate surface layer for heat development process | Physics | 1 | 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.