Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4384142 | Production of cyclohexylamine | Helmut L. Merten | 1983-05-17 |
| 4339577 | 2-(Thioamino)-4,6-diamino-1,3,5-triazines | — | 1982-07-13 |
| 4301260 | Vulcanizable rubber compositions scorch inhibited by 2-(thioamino)-4,6-diamino-1,3,5-triazines | — | 1981-11-17 |
| 4297269 | N,N'-Bis(1-cyclohexyl-1-ethyl)-p-phenylenediamine, and rubber compounds containing the same | Helmut L. Merten | 1981-10-27 |
| 4196146 | Making nitrodiarylamines from formyl derivatives of aromatic amines and nitrohaloarenes by admixing with certain aqueous salt solutions | Helmut L. Merten | 1980-04-01 |
| 4187248 | Making a nitrodiarylamine by reacting an alkali metal salt of a formamide with a nitrohaloarene | Helmut L. Merten | 1980-02-05 |
| 4187249 | Promoting the reaction of sodium salts of formyl derivatives of aromatic amines to form nitrodiarylamines | Otto W. Maender | 1980-02-05 |