Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882405 | Terpolymers of acrylamide, alkylacrylamide and betaine monomers | Donald N. Schulz, Ilan Duvdevani, Enock Berluche | 1989-11-21 |
| 4835234 | Hydrophobically functionalized cationic polymers | Paul L. Valint, Jr., Donald F. Jacques | 1989-05-30 |
| 4831092 | Micellar process for preparing hydrophobically functionalized cationic polymers (C-2114) | Paul L. Valint, Jr., Donald F. Jacques | 1989-05-16 |
| H577 | Aqueous drag reduction with novel acrylamide-N-alkyl acrylamide | Ralph M. Kowalik, Donald B. Siano, S. Richard Turner | 1989-02-07 |