Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9854940 | Batter-dipping pan holder for commercial fryer | — | 2018-01-02 |
| 7964314 | Segmented solid oxide fuel cell stack and methods for operation and use thereof | Monika Backhaus-Ricoult, Michael Edward Badding, James Micheal Harris | 2011-06-21 |
| 4987059 | Process for stabilizing photographic silver images | Werner Berthold, Helmut Haseler, Heinz Meckl, Hans hischlager | 1991-01-22 |
| 4886737 | Stabilization of a photographically produced silver image | Werner Berthold | 1989-12-12 |
| 4767698 | Photographic material containing a pyridine azo or pyridazine azo cyan dye releasing compound | Peter Bergthaller, Rudolf Stolzenburg | 1988-08-30 |
| 4760015 | Stabilization of a photographically produced silver image using an amino-1,2,4-triazole | Werner Berthold, Gunther Mahlberg, Hans hlschlager | 1988-07-26 |
| 4579805 | Color photographic recording material containing a thiophene azo dye releaser for cyan dyes | Peter Bergthaller, Hauke Furstenwerth, Rudolf Stolzenburg, Holger Heidenreich | 1986-04-01 |
| 4524124 | Color photographic recording material containing a thiazole azo dye releaser for cyan dyes | Peter Bergthaller, Rudolf Stolzenburg, Rainer Hamprecht | 1985-06-18 |
| 4436810 | Color-photographic recording material containing non-diffusing electron donor precursor compounds | Karl Kuffner, Wolfgang Lassig | 1984-03-13 |
| 4420557 | Color photographic recording material containing a non-diffusible electron donor precursor compound | Heinrich Odenwalder | 1983-12-13 |
| 4273855 | Photographic diffusion transfer process and material for the production of color images and suitable compounds therefor | Jan Jaeken, Andre Verhecken, Hans Vetter | 1981-06-16 |
| 4242435 | Photographic dye diffusion transfer process | Walter Puschel, Hans Vetter | 1980-12-30 |
| 4195992 | Photographic dye diffusion transfer process | Rudolf Stolzenburg, Walter Puschel | 1980-04-01 |
| 4186014 | Light sensitive photographic material containing a mordant layer | Peter Bergthaller, Wulf von Bonin, Gunter Helling | 1980-01-29 |