Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6468723 | Concentrate comprising a p-phenylenediamine derivative | Wolfgang Korner, Gerhard Schmid | 2002-10-22 |
| 6468724 | Color photographic developer concentrate | Matthias Porger | 2002-10-22 |
| 6413703 | Color photographic developer concentrate | Wolfgang Korner | 2002-07-02 |
| 6251573 | Color photographic developer concentrate | Wolfgang Korner | 2001-06-26 |
| 5888709 | Photographic recording material | Hans Ohlschlager, Wolfgang Schmidt, Dieter Rockser | 1999-03-30 |
| 5856074 | Fixing bath | Norman Klaunzer | 1999-01-05 |
| 5565138 | Bleach | Norman Klaunzer, Ralf Wichmann, Eltjo Boelema | 1996-10-15 |
| 5238791 | Bleaching bath | Ralf Wichmann, Heinz Meckl | 1993-08-24 |
| 5149618 | Bleach fixing process | Ralf Wichmann, Heinz Meckl, Edgar Draber | 1992-09-22 |
| 5110715 | Photographic reversal process | Ubbo Wernicke, Werner Berthold, Helmut Haseler | 1992-05-05 |
| 4987058 | Photographic processing method | Erika Spriewald, Heinz Meckl | 1991-01-22 |
| 4933264 | Process for processing a color photographic material | Helmut Haseler, Heinz Meckl | 1990-06-12 |