F25B 2309/1421
Pulse-tube cycles characterised by details not otherwise provided for
F25B2309/1421 (Pulse-tube cycles characterised by details not otherwise provided for) appears on 44 US grants and 36 published applications in this corpus.
Search patents in F25B- Granted patents
- 44
- Published applications
- 36
- Assignees
- 24
- Inventors
- 68
- Latest grant
- 15 Aug 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 2 |
| 2003 | 2 | 2 |
| 2004 | 2 | 1 |
| 2005 | 0 | 4 |
| 2006 | 3 | 7 |
| 2007 | 5 | 4 |
| 2008 | 0 | 4 |
| 2009 | 4 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 0 |
| 2015 | 1 | 4 |
| 2016 | 0 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 3 | 1 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cryocooler15 Aug 2023US 11,725,854 B2Sumitomo Heavy Industries, Ltd.
- Pulse tube cryocooler and method of manufacturing pulse tube cryocooler22 Nov 2022US 11,506,426 B2Sumitomo Heavy Industries, Ltd.
- GM cryocooler12 Jul 2022US 11,384,963 B2Sumitomo Heavy Industries, Ltd.
- GM cryocooler with buffer volume communicating with drive chamber17 May 2022US 11,333,407 B2Sumitomo Heavy Industries, Ltd.
- Stirling-type pulse tube refrigerator22 May 2018US 9,976,780 B2Sumitomo Heavy Industries, Ltd.
- Cryocooler15 Sep 2022US 2022/0290902 A1Sumitomo Heavy Industries, Ltd.
- Pulse tube cryocooler and method of manufacturing pulse tube cryocooler8 Jul 2021US 2021/0207853 A1Sumitomo Heavy Industries, Ltd.
- Gm cryocooler2 Jan 2020US 2020/0003459 A1Sumitomo Heavy Industries, Ltd.
- Gm cryocooler12 Sep 2019US 2019/0277542 A1Sumitomo Heavy Industries, Ltd.
- Stirling-type pulse tube refrigerator10 Dec 2015US 2015/0354861 A1Sumitomo Heavy Industries, Ltd.
Most cited
By later US patents
- Electronics package with improved thermal management by thermoacoustic heat pumping68US 5,303,555 AInternational Business Machines Corporation · 1994
- Tapered pulse tube for pulse tube refrigerators25US 5,953,920 AThe Regent of the University of California · 1999
- Passive frequency stabilization in an acoustic resonator24US 5,857,340 A1999
- Pulse tube refrigerator19US 5,845,498 AAisin Seiki Kabushiki Kaisha · 1998
- Pulse tube refrigerator18US 5,481,878 ADaido Hoxan Inc. · 1996