Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7645302 | Bleaching compositions | Matthew Elliot Helton, Xiao Wang, Wei Zhao | 2010-01-12 |
| 6432901 | Bleach catalysts | Dai Cong-Yun, Ronald Hage, Chang-Qing Ye, Hong Zeng | 2002-08-13 |