Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6787294 | Photographic material comprising a bicyclic pyrazolotriazole coupler with improved hue | Robert F. Romanet, Susan M. Fischer, Gary M. Russo | 2004-09-07 |
| 6638701 | Photographic element containing a red dye-forming pyrazolotriazole coupler | Mbiya Kapiamba, James L. Edwards, Gary M. Russo, Gregg P. Bryant | 2003-10-28 |
| 6521397 | Photographic element containing azole couplers | Mbiya Kapiamba, Donald R. Diehl, James L. Edwards, Gary M. Russo | 2003-02-18 |
| 6291152 | Photographic element having improved dye stability, compound, and imaging process | Paul A. Burns, Robert F. Romanet, Susan M. Fischer, Paul P. Spara | 2001-09-18 |
| 5985533 | Photographic element having improved magenta dye light stability and process for its use | Robert F. Romanet, Paul A. Burns, Susan M. Fischer, Paul P. Spara, Rajiv P. Balasubramanian +1 more | 1999-11-16 |
| 5972587 | Photographic element having improved magenta dye light stability and process for its use | Robert F. Romanet, Paul A. Burns, Susan M. Fischer, Paul P. Spara, Rajiv P. Balasubramanian | 1999-10-26 |
| 5191080 | Method for preparing tetraazaindenes | Mark John Robbins | 1993-03-02 |
| 5103016 | Photographically useful compounds | Mark John Robbins | 1992-04-07 |
| 5061799 | Preparation of tetraazaindenes | Mark John Robbins | 1991-10-29 |