Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419272 | Catalysts for the production of 2-cyanopyrazine | Heinz Friedrich, Axel Kleemann, Gunther Prescher, Helmut Beschke | 1983-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419272 | Catalysts for the production of 2-cyanopyrazine | Heinz Friedrich, Axel Kleemann, Gunther Prescher, Helmut Beschke | 1983-12-06 |