Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451169 | Structurally rigid polymer coagulants as retention and drainage aids in papermaking | William J. Ward | 2002-09-17 |
| 6444091 | Structurally rigid nonionic and anionic polymers as retention and drainage aids in papermaking | William J. Ward, Phillip W. Carter, Andrei Zelenev | 2002-09-03 |