Issued Patents All Time
Showing 26–50 of 71 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7997088 | Hybrid spool valve for multi-port pulse tube | — | 2011-08-16 |
| 7631505 | Wearless valve for cryorefrigerator | Eric Seitz, Jin Lin Gao, Mingyao Xu | 2009-12-15 |
| 7500366 | Refrigerator with magnetic shield | Mingyao Xu, Jin Lin Gao | 2009-03-10 |
| 7497084 | Co-axial multi-stage pulse tube for helium recondensation | Mingyao Xu | 2009-03-03 |
| 7305835 | Pulse tube cooling by circulation of buffer gas | — | 2007-12-11 |
| 7201004 | Panels for pulse tube cryopump | — | 2007-04-10 |
| 7191600 | Fast warm up pulse tube | Jin Lin Gao | 2007-03-20 |
| 7165406 | Integral pulse tube refrigerator and cryopump | — | 2007-01-23 |
| 6715300 | Pulse tube integral flow smoother | — | 2004-04-06 |
| 6629418 | Two-stage inter-phasing pulse tube refrigerators with and without shared buffer volumes | Jin Lin Gao | 2003-10-07 |
| 6554103 | Fail-safe oil lubricated helium compressor unit with oil-free gas delivery | — | 2003-04-29 |
| 6488120 | Fail-safe oil lubricated helium compressor unit with oil-free gas delivery | — | 2002-12-03 |
| 6256997 | Reduced vibration cooling device having pneumatically-driven GM type displacer | — | 2001-07-10 |
| 5706663 | High efficiency throttle cryogenic refrigerator based on one stage compressor | Mikhail Boiarski, Boris Yudin, Ajay Khatri | 1998-01-13 |
| 5687574 | Throttle cycle cryopumping system for Group I gases | Francis T. Lotz | 1997-11-18 |
| 5628195 | Vibrationally isolated thermal system for a cryogenically cooled device | Dennis Hill | 1997-05-13 |
| 5595065 | Closed cycle cryogenic refrigeration system with automatic variable flow area throttling device | Michael Boiarski, Boris Yudin, Dennis Hill, Lawrence A. Klusmier, Ajay Khatri +1 more | 1997-01-21 |
| 5586437 | MRI cryostat cooled by open and closed cycle refrigeration systems | Leo Blecher, F. Scott Murray, Philip Alexander Jonas, Michael Boiarski | 1996-12-24 |
| 5579654 | Cryostat refrigeration system using mixed refrigerants in a closed vapor compression cycle having a fixed flow restrictor | Mikhail J. Boiarsky, Ajay Khatri | 1996-12-03 |
| 5461873 | Means and apparatus for convectively cooling a superconducting magnet | — | 1995-10-31 |
| 5457961 | Crysostat for very stable temperature maintenance | — | 1995-10-17 |
| 5452582 | Cryo-probe | — | 1995-09-26 |
| 5402648 | Sealed dewar with separate circulation loop for external cooling at constant pressure | — | 1995-04-04 |
| 5385027 | Continuous flow cryogen sublimation cooler | Ajay Khatri | 1995-01-31 |
| 5337572 | Cryogenic refrigerator with single stage compressor | — | 1994-08-16 |