Issued Patents All Time
Showing 25 most recent of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6498001 | Photographic silver halide emulsion | Jorg Siegel, Hans-Ulrich Borst, Ralf Buscher, Ulrich Nickel | 2002-12-24 |
| 6498002 | Photographic silver halide material | Jorg Siegel, Hans-Ulrich Borst | 2002-12-24 |
| 6498003 | Photographic silver halide material | Jorg Siegel, Hans-Ulrich Borst | 2002-12-24 |
| 6261758 | Production of silver halide emulsions | Ralf Wirowski, Hans-Ulrich Borst, Detlev Kapitza, Jorg Siegel, Heinrich Odenwalder | 2001-07-17 |
| 6171773 | Color photographic print material | Jurgen Jung, Edgar Draber, Jorg Hagemann, Ulrich Nickel | 2001-01-09 |
| 6150079 | Color photographic recording material | — | 2000-11-21 |
| 6043017 | Color photographic silver halide material | — | 2000-03-28 |
| 6028199 | Hardeners for photographic materials | Erich Wolff | 2000-02-22 |
| 5935688 | Inkjet recording material | Stefan Herrmann | 1999-08-10 |
| 5908741 | Photographic silver halide material | Hans-Ulrich Borst, Johannes Willsau, Ralf Buscher, Peter Bell | 1999-06-01 |
| 5888717 | Photographic silver halide emulsion | Hans-Ulrich Borst, Jorg Siegel | 1999-03-30 |
| 5885760 | Color photographic recording material | Jurgen Strobach | 1999-03-23 |
| 5855657 | Inkjet ink | Stefan Herrmann | 1999-01-05 |
| 5821044 | Photographic silver halide emulsions | Jorg Siegel, Hans-Ulrich Borst, Michael Missfeldt | 1998-10-13 |
| 5683863 | Photographic silver halide material | Hans-Ulrich Borst, Peter Bell, Ralf Buscher, Johannes Willsau, Thomas Stetzer | 1997-11-04 |
| 5463072 | Process for the preparation of naphtholic 2-equivalent cyan couplers | — | 1995-10-31 |
| 5455149 | Color photographic material containing novel yellow couplers | — | 1995-10-03 |
| 5200306 | Color photographic recording material containing a coupler which releases a photographically active compound | Heinrich Odenwalder, Hans Vetter, Dirk Hubner | 1993-04-06 |
| 5021331 | Color photographic recording material containing a DIR coupler | Hans Vetter, Heinrich Odenwalder, Thomas Krüger | 1991-06-04 |
| 5021330 | Color photographic recording material containing a coupler releasing a photographically active compound | Thomas Krüger, Rudolf Stolzenburg, Dirk Hubner | 1991-06-04 |
| 5021332 | Color photographic recording material containing a DIR coupler | Thomas Krüger, Hans Vetter, Heinrich Odenwalder | 1991-06-04 |
| 4939075 | Bleaching baths containing bleaching accelerators | Helmut Haseler, Heinz Meckl | 1990-07-03 |
| 4870000 | Color photograhic recording material containing a coupler which releases a photographically active compound | Rudolf Stolzenburg, Dirk Hubner | 1989-09-26 |
| 4767698 | Photographic material containing a pyridine azo or pyridazine azo cyan dye releasing compound | Rudolf Stolzenburg, Paul Marx | 1988-08-30 |
| 4600681 | Color photographic material with azo dicyanoimidazole dyes | Jurgen Strauss, Hans-Volker Runzheimer, Gerhard Wolfrum | 1986-07-15 |