Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7964689 | Superabsorbent polymer made from acrylic acid | Stefan Nordhoff, Axel Kobus, Stefan Gross, Hans-Rolf Lausch, Torsten Balduf +1 more | 2011-06-21 |
| 7803969 | Continuous process for the production and purification of acrylic acid | Stefan Nordhoff, Axel Kobus, Stefan Gross, Hans-Rolf Lausch, Torsten Balduf +1 more | 2010-09-28 |
| 6664419 | Method and device for purifying substances by means of crystallization | — | 2003-12-16 |
| 5196594 | Process for the production of 4,4'-diamino-dicyclohexylmethane with a low trans-trans isomer content by the catalytic hydrogenation of 4,4'-diamino-diphenylmethane | George H. Schmelzer, Gary F. Allen, Werner Otte | 1993-03-23 |