Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5862671 | Purge and rough cryopump regeneration process, cryopump and controller | Philip A. Lessard, Paul E. Dresens, Maureen C. Buonpane, Alan C. Brightman, Robert M. Patterson +5 more | 1999-01-26 |