Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6155059 | High capacity cryopump | Stephen R. Matte | 2000-12-05 |
| 5906102 | Cryopump with gas heated exhaust valve and method of warming surfaces of an exhaust valve | Michael J. Eacobacci, Joseph P. Johnson | 1999-05-25 |
| 5862671 | Purge and rough cryopump regeneration process, cryopump and controller | Philip A. Lessard, Paul E. Dresens, Maureen C. Buonpane, Timothy M. Pulling, Alan C. Brightman +5 more | 1999-01-26 |
| 5782096 | Cryopump with improved shielding | John J. Casello | 1998-07-21 |
| 5517823 | Pressure controlled cryopump regeneration method and system | Bruce R. Andeen, Gerald J. Fortier, Michael J. Eacobacci, Philip C. Lessard | 1996-05-21 |
| 5375424 | Cryopump with electronically controlled regeneration | Stephen J. Yamartino | 1994-12-27 |
| 5356270 | Ultra high vacuum cryopump relief valve assembly | — | 1994-10-18 |
| 5301511 | Cryopump and cryopanel having frost concentrating device | Charles A. Stochl, Anthony M. Guerra, Dale A. Dopson, Paul Meroski, Thomas F. Stevens | 1994-04-12 |
| 5242277 | Ultra high vacuum cryopump relief valve assembly | — | 1993-09-07 |
| 5211022 | Cryopump with differential pumping capability | Douglas Aitken | 1993-05-18 |
| 5156007 | Cryopump with improved second stage passageway | Philip A. Lessard, Stephen J. Yamartino, John T. Harvell | 1992-10-20 |
| RE33878 | Cryogenic recondenser with remote cold box | Bruce R. Andeen, Philip A. Lessard | 1992-04-14 |
| 5060481 | Method and apparatus for controlling a cryogenic refrigeration system | Maureen C. Buonpane, Paul E. Amundsen | 1991-10-29 |
| 4966016 | Cryopump with multiple refrigerators | — | 1990-10-30 |
| 4949546 | Compact heat exchanger for a cryogenic refrigerator | Lawrence A. Klusmier, Dale A. Dopson | 1990-08-21 |
| 4796433 | Remote recondenser with intermediate temperature heat sink | — | 1989-01-10 |
| 4766741 | Cryogenic recondenser with remote cold box | Bruce R. Andeen, Philip A. Lessard | 1988-08-30 |
| 4679401 | Temperature control of cryogenic systems | Philip A. Lessard, John Peterson | 1987-07-14 |
| 4555907 | Cryopump with improved second stage array | — | 1985-12-03 |
| 4454722 | Cryopump | Robert M. Lewis | 1984-06-19 |
| 4449373 | Reduced vacuum cryopump | John Peterson | 1984-05-22 |
| 4446702 | Multiport cryopump | John Peterson | 1984-05-08 |
| 4438632 | Means for periodic desorption of a cryopump | Philip A. Lessard | 1984-03-27 |
| 4356701 | Cryopump | Robert M. Lewis | 1982-11-02 |