Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5407588 | Fabric softening composition | Robert M. Butterworth | 1995-04-18 |
| 4954270 | Fabric softening composition: fabric softener and hydrophobically modified nonionic cellulose ether | Robert M. Butterworth | 1990-09-04 |