F25B 2309/1419
Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [ptr]
Official title: Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [PTR], i.e. comprising a tube with basic schematic
F25B2309/1419 (Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [ptr]) appears on 12 US grants and 5 published applications in this corpus.
Search patents in F25B- Granted patents
- 12
- Published applications
- 5
- Assignees
- 13
- Inventors
- 25
- Latest grant
- 13 Nov 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Multistage pulse tube coolers13 Nov 2018US 10,126,023 B2The Aerospace Corporation
- System, apparatus and method for pulse tube cryocooler3 Nov 2015US 9,175,884 B2Lockheed Martin Corporation
- Periodically operating refrigeration machine23 Sep 2003US 6,622,491 B2Forschungszentrum Karlsruhe GmbH
- Apparatus for delivering current to a cooled electrical device5 Sep 2000US 6,112,527 ASiemens Aktiengesellschaft
- Apparatus for acoustic cooling automotive electronics9 May 2000US 6,059,020 AFord Global Technologies, LLC
- Regenerative cryogenic machine13 Oct 2022US 2022/0325922 A1Absolut System
- Hybrid double-inlet valve for pulse tube cryocooler17 Feb 2022US 2022/0049878 A1Sumitomo (SHI) Cryogenics of America, Inc.
- Multistage pulse tube coolers25 Aug 2016US 2016/0245553 A1The Aerospace Corporation
- System, apparatus and method for pulse tube cryocooler15 Jan 2015US 2015/0013348 A1Lockheed Martin Corporation
- Periodically operating refrigeration machine30 Jan 2003US 2003/0019218 A1Forschungszentrum Karlsruhe GmbH
Most cited
By later US patents
- Intrinsically irreversible heat engine59US 4,489,553 AThe United States of America as represented by the United States Department of Energy · 1984
- Acoustic cryocooler58US 4,953,366 AThe United States of America as represented by the United States Department of Energy · 1990
- Pulse tube refrigerating system35US 5,275,002 AAisin Newhard Co., Ltd. · 1994
- Pulse tube refrigerating system33US 5,269,147 AAisin Seiki Kabushiki Kaisha · 1993
- Pulse tube refrigerator with variable phase shift20US 6,021,643 AThe Regents of the University of California · 2000