Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4967019 | Method of manufacturing 2-propyn-1-ol | Helmut Westernacher, Thomas Stieren | 1990-10-30 |
| 4855516 | Method of manufacturing 2-propyn-1-ol | Helmut Westernacher, Thomas Stieren | 1989-08-08 |
| 4847440 | Method of manufacturing propynol | Helmut Westernacher, Thomas Stieren | 1989-07-11 |
| 4373999 | Distillation of butinediol-1,4 | Helmut Westernacher | 1983-02-15 |