Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597909 | Process for the production of polyisocyanates | Berthold Keggenhoff, Willi Eifler, Gunther Ellendt | 1986-07-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597909 | Process for the production of polyisocyanates | Berthold Keggenhoff, Willi Eifler, Gunther Ellendt | 1986-07-01 |