Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9731398 | Polyurethane polishing pad | Bainian Qian, Marty W. DeGroot, Benson Lee | 2017-08-15 |
| 9275899 | Chemical mechanical polishing composition and method for polishing tungsten | Yi Guo | 2016-03-01 |
| 8865013 | Method for chemical mechanical polishing tungsten | Yi Guo, Jerry Lee, Guangyun Zhang | 2014-10-21 |