Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728555 | Process for the preparation of beta-hydroxypolyamines by reaction of epoxy resins with ammonia | Hans-Joachim Kiessling | 1988-03-01 |
| 4375436 | Continuous process for the production of chloroalkyl-sulfonyl isocyanates | Peter Wegener, Dieter Ulmschneider | 1983-03-01 |
| 4297323 | Pressure vessel having quick-action locking means | Karl-Heinz Tetzlaff, Gunter Leuschner | 1981-10-27 |