Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8053509 | Starch-(meth)acrylate graft copolymer, oil-swellable material and oil- and water-swellable material comprising the same, and sealing articles and packers prepared from said swellable material | Qiang Wang, Huian Yi | 2011-11-08 |