Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6444011 | Process and system for separation and recovery of perfluorocompound gases | Yao-En Li, David Vassallo, Gregory K. Fleming | 2002-09-03 |
| 6312502 | Process and system for separation and recovery of perfluorocompound gases | Yao-En Li, David Vassallo, Gregory K. Fleming | 2001-11-06 |
| 6254666 | Process and system for separation and recovery of perfluorocompound gases | Yao-En Li, David Vassallo, Gregory K. Fleming | 2001-07-03 |
| 6214089 | Process and system for separation and recovery of perfluorocompound gases | Yao-En Li, David Vassallo, Gregory K. Fleming | 2001-04-10 |