Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663028 | Electrostatic toners containing aminodiacetic acid derivatives | Alfred Oftring, Juergen Schneider, Karin H. Beck | 1997-09-02 |
| 5627077 | Anilines as markers for mineral oils | Friedrich-Wilhelm Raulfs, Ulrike Schlosser | 1997-05-06 |
| 5614346 | Metal oxide- and metal-coated carriers for electrophotography | Jorg Adel | 1997-03-25 |