Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4880585 | Continuous method of tableting | Roger Klimesch, Gerhard Bleckmann, Karl-Peter Farwerck, Lothar Schlemmer | 1989-11-14 |
| 4859756 | Polymers of oxyalkylated unsaturated quaternary ammonium salts, their preparation and their use | Alfred Oftring, Friedrich Vogel | 1989-08-22 |
| 4841066 | Preparation of 3-methyl-1-vinylimidazolium chlorides | Ferdinand Straub, Axel Sanner, Albrecht Kolb, Hans-Juergen Raubenheimer, Friedrich Vogel | 1989-06-20 |
| 4801460 | Preparation of solid pharmaceutical forms | Roger Klimesch, Klaus Laemmerhirt, Siegfried Lang, Axel Sanner, Reinhard Spengler | 1989-01-31 |