Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6387296 | Optically brightened plastics for optically brightening paper-coating compounds and paper-coating compounds optically brightened in this manner | Udo Eckstein, Joachim Konig, Fritz Puchner, Ulrich Feldhues, Uwe Vogt +1 more | 2002-05-14 |
| 5368968 | Modified polyester resins, a process for their preparation and toners containing such polyester resins | Rolf Wehrmann, Harald Pielartzik, Gunter Klug | 1994-11-29 |
| 5292881 | New naphthalimides, toners containing these and the use of the new naphthalimides as additives for toners | Horst Berneth, Horst Harnisch, Roderich Raue, Jurgen-Rolf Hassdenteufel | 1994-03-08 |
| 5015478 | Porphycene anti-cancer agents and treatment methods | Giulio Jori, Emanuel Vogel, Alexander D. Cross | 1991-05-14 |
| 4913907 | Porphycene anti-cancer agents and treatment methods | Giulio Jori, Emanuel Vogel, Alexander D. Cross | 1990-04-03 |