Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5235105 | Process for the production of pure 3,3',4,4'-tetraamino-biphenyl | — | 1993-08-10 |
| 4847346 | Curing component for synthetic resins, curable mixtures containing the same, and the use thereof | Manfred Finke, Rudiger Lenz | 1989-07-11 |
| 4675457 | Process for the preparation of 4,4'-dihydroxydiphenyl ether | — | 1987-06-23 |