F25B 2309/14241
Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse
Official title: Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse tube
F25B2309/14241 (Pulse tubes with basic schematic including an orifice reservoir multiple inlet pulse) appears on 58 US grants and 42 published applications in this corpus.
Search patents in F25B- Granted patents
- 58
- Published applications
- 42
- Assignees
- 32
- Inventors
- 88
- Latest grant
- 24 Aug 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 2 |
| 2002 | 7 | 2 |
| 2003 | 4 | 2 |
| 2004 | 1 | 3 |
| 2005 | 1 | 5 |
| 2006 | 3 | 6 |
| 2007 | 7 | 6 |
| 2008 | 2 | 8 |
| 2009 | 5 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 1 |
| 2013 | 3 | 2 |
| 2014 | 2 | 0 |
| 2015 | 2 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pulse tube refrigerating machine24 Aug 2021US 11,098,931 B2Sumitomo Heavy Industries, Ltd.
- Cryogenic refrigerator8 Nov 2016US 9,488,391 B2Sumitomo Heavy Industries, Ltd.
- Double inlet type pulse tube refrigerator13 Oct 2015US 9,157,668 B2Sumitomo Heavy Industries, Ltd.
- Pulse tube refrigerator and regenerative refrigerator15 Sep 2015US 9,134,046 B2Sumitomo Heavy Industries, Ltd.
- Reduced input power cryogenic refrigerator22 Jul 2014US 8,783,045 B2SHI-APD Cryogenics, Inc.
- Multiple rotary valve for pulse tube refrigerator1 Jan 2015US 2015/0001428 A1c/o Sumitomo (SHI) Cryogenics of America, Inc.
- Pulse tube refrigerator and regenerative refrigerator7 Nov 2013US 2013/0291565 A1Sumitomo Heavy Industries, Ltd.
- Cryogenic refrigerator4 Apr 2013US 2013/0081411 A1Sumitomo Heavy Industries, Ltd.
- Pulse tube cryocooler modulating phase via inertance tube and acoustic power amplifier thereof3 May 2012US 2012/0102976 A1Zhejiang University
- Double inlet type pulse tube refrigerator6 Jan 2011US 2011/0000225 A1Sumitomo Heavy Industries, Ltd.
Most cited
By later US patents
- Multi-bypass pulse tube refrigerator44US 5,295,355 ACryogenic Laboratory of Chinese Academy of Sciences · 1994
- Pulse tube refrigerator39US 5,412,952 AKabushiki Kaisha Toshiba · 1995
- Pulse-tube cryorefrigeration apparatus using an integrated buffer volume38US 6,378,312 B1Cryomech, Inc. · 2002
- Pulse tube refrigerator30US 5,335,505 AKabushiki Kaisha Toshiba · 1994
- Hybrid-two-stage pulse tube refrigerator29US 6,256,998 B1IGCAPD Cryogenics, Inc. · 2001