Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5643865 | Concentrated biodegradable quaternary ammonium fabric softener compositions containing quaternary ammonium compounds with short fatty acid alkyl chains | Robert Mermelstein, Ellen Schmidt Baker, Errol Hoffman Wahl | 1997-07-01 |