Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6638875 | Oxygen free plasma stripping process | Qingyan Han, Ivan L. Berry, III, Palani Sakthivel, Mahmoud Dahimene | 2003-10-28 |
| 6492186 | Method for detecting an endpoint for an oxygen free plasma process | Qingyan Han, Palani Sakthivel, Andre Cardoso | 2002-12-10 |
| 6281135 | Oxygen free plasma stripping process | Qingyuan Han, Ivan L. Berry, III, Palani Sakthivel, Mammoud Dahimene | 2001-08-28 |