Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889704 | Preparation of hydroxylammonium salts | Hugo Fuchs, Josef Ritz, Erwin Thomas | 1989-12-26 |
| 4837362 | Preparation of pure hydroxylammonium salts of fatty acids of 1 to 4 carbon atoms | Hugo Fuchs | 1989-06-06 |