Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840738 | Stable biodegradable fabric softening compositions containing 2-hydroxypropyl monoester quaternized ammonium salts | Frederick E. Hardy | 1989-06-20 |
| 4808321 | Mono-esters as fiber and fabric treatment compositions | — | 1989-02-28 |