Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762267 | Controlled release polyacrylic acid granules and a process for preparing the same | David William Weaver, William R. Wilber, Jian-Hwa Guo, Edward S. Greenberg | 2004-07-13 |
| 6596844 | Controlled release polyacrylic acid granules and a process for preparing the same | David William Weaver | 2003-07-22 |
| 6492488 | Controlled release polyacrylic acid granules and a process for preparing the same | David William Weaver | 2002-12-10 |
| 5468797 | Polycarboxylic acid thickeners, emulsifiers, and suspending aids having improved wettability characteristics | Zahid Amjad, Solomon Lemma, Carl J. Long, II | 1995-11-21 |
| 5373044 | Polycarboxylic acid thickeners, emulsifiers, and suspending aids having improved wettability characteristics | Zahid Amjad, Solomon Lemma, Carl J. Long, II | 1994-12-13 |