Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4847346 | Curing component for synthetic resins, curable mixtures containing the same, and the use thereof | Edgar Vorwerk, Rudiger Lenz | 1989-07-11 |
| 4808658 | Aminourethanes, preparation and use thereof | Gerd Walz, Michael Honel, Gerhard Brincopke, Walter Sprenger, Rudiger Lenz | 1989-02-28 |