Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5095073 | Water soluble rigid rod sulfonated aromatic polyamide | Dennis G. Peiffer | 1992-03-10 |
| 4894422 | N-sulfoalkyl polyamide water soluble hydrophobically-associating rigid rod polymer | Dennis G. Peiffer | 1990-01-16 |
| 4788247 | Terpolymers of acrylamide, alkyl polyetheroxyacrylate and betaine monomers | Donald N. Schulz, Ilan Duvdevani, Jan Bock | 1988-11-29 |