Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7572849 | Urea phenyl derivatives and their use as polypropylene nucleating agents | Qinggao Ma, William A. Wortman, Jin-Yun Wang, Huiling Ding, Roy Russell +3 more | 2009-08-11 |
| 7217765 | Styrenic polymer composites | Sung Chul HONG, Qinggao Ma, Paul E. Stott, John M. Wefer | 2007-05-15 |