Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4762954 | Continuous method for the production of 1,2-diols | Rainer Siegmeier, Helmut Maurer | 1988-08-09 |
| 4496729 | Catalysts for the production of 2-cyanopyrazine | Wolfgang Bergstein, Heinz Friedrich, Axel Kleemann, Helmut Beschke | 1985-01-29 |
| 4419272 | Catalysts for the production of 2-cyanopyrazine | Bergstein Wolfgang, Heinz Friedrich, Axel Kleemann, Helmut Beschke | 1983-12-06 |