Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7235284 | Recording sheets for ink jet printing | Stefan Schuttel, Hiroshi Tomimasu | 2007-06-26 |
| 5916673 | Recording sheets for ink jet printing | Roland Kurzen, Klaus H. Haarmann, Diane L. Blednick, Daniel R. Rogers | 1999-06-29 |
| 5702866 | Dihydrazides | Otto Gottel, Thomas Stauner | 1997-12-30 |
| 5686222 | Dihydrazides | Otto Gottel, Thomas Stauner | 1997-11-11 |
| 4576885 | Photographic material for the silver dye bleach process | Heinrich Schaller, Rolf Steiger, Heinz Peter | 1986-03-18 |
| 4568752 | Recording material for color photography | — | 1986-02-04 |
| 4471048 | Photographic material | Viktor Weiss | 1984-09-11 |
| 4465763 | Process for the production of photographic color images by the silver dye bleach process | Eddy Forte, Gerald Jan | 1984-08-14 |
| 4436811 | Photographic material | Viktor Weiss | 1984-03-13 |
| 4407935 | Photographic recording material | David G. Leppard | 1983-10-04 |
| 4404273 | Process for the production of photographic color images by the silver dye bleach process | Eddy Forte, Gerald Jan | 1983-09-13 |
| 4379819 | Color-photographic recording material for the silver dye bleach process | John Lenoir, Gerald Jan | 1983-04-12 |
| 4359521 | Light-sensitive color photographic material | Remon Hagen, John G. V. Scott | 1982-11-16 |
| 4248961 | Material for color photography | Remon Hagen | 1981-02-03 |
| 4238564 | Recording material for color photography | — | 1980-12-09 |
| 4229577 | Yellow photographic color couplers containing 3-imino-1,3,4-thiadiazolyl-4 groups | Graham Evans, Thomas Stauner, Paul Tschopp, David G. Leppard | 1980-10-21 |