Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5663141 | Hirudin/polyalkylene glycol conjugates and hirudin muteins | Manfred Kurfuerst, Klaus Ruebsamen, Wolfgang Koerwer, Juergen Schweden, Hans Wolfgang Hoeffken | 1997-09-02 |
| 5591778 | Process for the preparation of expandable polystyrene | Dietrich Scherzer, Klaus Hahn, Anthony G. Schaefer | 1997-01-07 |