Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4863723 | Method for preparing hexamethylcyclotrisiloxane and uses for the same | Helmut Gebauer | 1989-09-05 |
| 4842853 | Solid which releases a fragrant substance and/or a disinfectant | Helmut Gebauer | 1989-06-27 |