Issued Patents 1989
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842987 | Photosensitive element for producing printing plates or resist images | Albert Elzer, Hans Schupp, Erich Beck | 1989-06-27 |
| 4841066 | Preparation of 3-methyl-1-vinylimidazolium chlorides | Hans-Helmut Goertz, Ferdinand Straub, Albrecht Kolb, Hans-Juergen Raubenheimer, Friedrich Vogel | 1989-06-20 |
| 4816534 | Preparation of vinylpyrrolidone polymers | Adolf Nuber, Walter Denzinger | 1989-03-28 |
| 4806450 | Photosensitive photopolymerizable recording element having a terpolymer binder in the photopolymerizable layer | Reiner Hofmann | 1989-02-21 |
| 4806449 | Photosensitive photopolymerizable recording element containing a terpolymer binder | Reiner Hofmann | 1989-02-21 |
| 4801460 | Preparation of solid pharmaceutical forms | Hans-Helmut Goertz, Roger Klimesch, Klaus Laemmerhirt, Siegfried Lang, Reinhard Spengler | 1989-01-31 |
| 4795802 | Removal of vinylpyrrolidone from vinylpyrrolidone polymers | Adolf Nuber, Dieter Urban | 1989-01-03 |