Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5079156 | Carrier bonded enzymes and a process for their preparation | Siegfried Noetzel, Bernhard Neumann | 1992-01-07 |
| 4931476 | Crosslinked polymers and a process for their preparation | Siegfried Noetzel, Klaus Sauber | 1990-06-05 |
| 4906570 | Polymers based on polyvinylene carbonate and/or polyhydroxymethylene as carriers for biologically active substances | — | 1990-03-06 |
| 4906715 | N,N'-divinylalkylurea crosslinked polymers, a process for their preparation, and their use | Siegfried Noetzel, Bernhard Neumann | 1990-03-06 |
| 4839439 | Preparation of polymer based on polyvinylene carbonate and/or polyhydroxymethylene | — | 1989-06-13 |
| 4788278 | Polyvinylene carbonate and polyhydroxymethylene, processes for their preparation and their use | — | 1988-11-29 |
| 4767620 | Crosslinked polymers with carbonate ester groups, and a process for their preparation | Siegfried Noetzel, Klaus Sauber | 1988-08-30 |
| 4568706 | Macroporous bead polymers, a process for their preparation and their use | Siegfried Noetzel, Klaus Sauber | 1986-02-04 |
| 4542069 | Vinylene carbonate polymers, a process for their preparation and their use | Klaus Sauber, Siegfried Noetzel | 1985-09-17 |