Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7708823 | Semi-transparent interference pigments containing tin | Helge Kniess, Klaus Bernhardt, Gerhard Pfaff | 2010-05-04 |
| 6419736 | Sulfide and oxysulphide pigments | Gerhard Pfaff, Matthias Kuntz, Reiner Vogt, Rodney Riddle, Sabine Schoen | 2002-07-16 |
| 4987133 | Salicylic acid derivatives | Hans-Adolf Kurmeier, Hans-Eckart Radunz, Hans-Jochen Schliep | 1991-01-22 |
| 4950648 | Analgesic | Peter Raddatz, Andrew Barber, Hans-Peter Wolf, Christoph Seyfried | 1990-08-21 |
| 4357278 | Process for synthesizing estrone or estrone derivatives | Gerhard Quinkert, Ulrich Schwartz | 1982-11-02 |