Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7070854 | Water-dispersible, cationic polymers, a method of making same and items using same | Yihua Chang, Frederick J. Lang, Kelly D. Branham | 2006-07-04 |
| 6897168 | Water-dispersible, cationic polymers, a method of making same and items using same | Kelly D. Branham, Yihua Chang, Frederick J. Lang, Clay Bunyard | 2005-05-24 |
| 6828014 | Water-dispersible, cationic polymers, a method of making same and items using same | Kelly D. Branham, Yihua Chang, Frederick J. Lang, Clay Bunyard | 2004-12-07 |