Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5625004 | Two-step thermal process for the preparation of alkenyl succinic anhydride | William R. Ruhe, Jr. | 1997-04-29 |
| 5616668 | Polymeric dispersants having polyalkylene and succinic groups | William R. Ruhe, Jr. | 1997-04-01 |