Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4597909 | Process for the production of polyisocyanates | Berthold Keggenhoff, Enno Mahlmann, Gunther Ellendt | 1986-07-01 |
| 4303773 | Process for the production of polyurethane urea elastomers | Otto Ganster, Hans-Joachim Meiners, Holger Meyborg, Jurgen Schwindt | 1981-12-01 |
| 4189443 | Method for making a polyamine | Juergen Ick | 1980-02-19 |