Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7828886 | Anthrapyridone dyes and their preparation and use | Kurt Baettig | 2010-11-09 |
| 7632345 | Phthalocyanine dyes and their preparation and use | Kurt Baettig | 2009-12-15 |
| 6562115 | Azo dyes and their preparation and use | Kurt Baettig | 2003-05-13 |
| 6320031 | Monoazo dyes and their preparation and use | Kurt Baettig | 2001-11-20 |
| 6068687 | Azo dyes and their preparation and use | Kurt Baettig | 2000-05-30 |
| 5824785 | Dyes for ink jet printing | Kurt Baettig | 1998-10-20 |
| 5684140 | Dyes for ink jet printing | Kurt Baettig | 1997-11-04 |
| 5043257 | Azo dyes for photographic silver dye bleach material | Kurt Baettig | 1991-08-27 |
| 4521591 | Oil-soluble disazo dyes and their use in color-photographic recording materials for the silver dye bleach process | John Lenoir | 1985-06-04 |
| 4465763 | Process for the production of photographic color images by the silver dye bleach process | Eddy Forte, Mario Fryberg | 1984-08-14 |
| 4456668 | Azo dyes containing phosphamic acid diester groups | John Lenoir | 1984-06-26 |
| 4409143 | Monoazo dyes containing phosphamic acid diester groups | John Lenoir | 1983-10-11 |
| 4404273 | Process for the production of photographic color images by the silver dye bleach process | Eddy Forte, Mario Fryberg | 1983-09-13 |
| 4379819 | Color-photographic recording material for the silver dye bleach process | John Lenoir, Mario Fryberg | 1983-04-12 |
| 4369318 | Process for the production of colored photographic images by the silver dye-bleach process | — | 1983-01-18 |
| 4357280 | Use of tertiary phosphines in photographic silver dye bleach materials | Christoph Chylewski, Roland Kurzen, Max Meier, Matthias Schellenberg | 1982-11-02 |
| 4323682 | Quinoxalines and their use in photographic processes | Remon Hagen, John Lenoir | 1982-04-06 |
| 4304846 | Method for processing silver dye-bleach materials | Max Marthaler | 1981-12-08 |
| 4266011 | Process for the production of colored photographic images by the silver dye-bleach process | — | 1981-05-05 |
| 4216320 | Quinoxaline bleach catalysts | Remon Hagen, John Lenoir | 1980-08-05 |
| 4202698 | Quinoxalines and their use in photographic processes | Remon Hagen, John Lenoir | 1980-05-13 |