Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853368 | Methylcyclododecatri-2,5,9-en-1-ols, a process for their preparation, and their use | Jurgen Neinhaus, Rudolf Hopp, Egon Oelkers | 1989-08-01 |
| 4814322 | Scents, and scent compositions containing them | Fritz Exner, Detlef Hagena, Rudolf Hopp, Jurgen Nienhaus | 1989-03-21 |