F25B 2309/1426
Pulse tubes with basic schematic including at the pulse tube warm end
Official title: Pulse tubes with basic schematic including at the pulse tube warm end a so called warm end expander
F25B2309/1426 (Pulse tubes with basic schematic including at the pulse tube warm end) appears on 20 US grants and 10 published applications in this corpus.
Search patents in F25B- Granted patents
- 20
- Published applications
- 10
- Assignees
- 18
- Inventors
- 40
- Latest grant
- 10 Jul 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 3 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cryogenic refrigerator10 Jul 2018US 10,018,381 B2Sumitomo Heavy Industries, Ltd.
- Heat-actuated double-acting traveling-wave thermoacoustic refrigeration system27 Sep 2016US 9,453,663 B2Lihan Cryogenics Co., Ltd.
- Secondary pulse tubes and regenerators for coupling to room temperature phase shifters in multistage pulse tube cryocoolers10 Feb 2015US 8,950,193 B2The United States of America as represented by the Secretary of Commerce, The National Institute of Standards and Technology
- Thermo-electro-acoustic refrigerator and method of using same26 Jun 2012US 8,205,459 B2Palo Alto Research Center Incorporated
- Pressure vibration generator12 Sep 2006US 7,104,055 B2Japan Aerospace Exploration Agency
- Secondary pulse tubes and regenerators for coupling to room temperature phase shifters in multistage pulse tube cryocoolers29 Jan 2015US 2015/0027135 A1National Institute of Standards and Technology
- Cryogenic refrigerator28 Aug 2014US 2014/0238047 A1Sumitomo Heavy Industries, Ltd.
- Single-stage double-acting traveling-wave thermoacoustic system24 Jul 2014US 2014/0202175 A1Lihan Thermoacoustic Technologies (Shen_Zhen) Co., Ltd.
- Heat-actuated double-acting traveling-wave thermoacoustic refrigeration system26 Jun 2014US 2014/0174102 A1LlHAN THERMOACOUSTIC TECHNOLOGIES (SHEN_ZHEN) CO., LTO.
- Secondary pulse tubes and regenerators for coupling to room temperature phase shifters in multistage pulse tube cryocoolers21 Jun 2012US 2012/0151941 A1The United States of America as represented by the Secretary of Commerce, The National Institute of Standards and Technology
Most cited
By later US patents
- 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 heat engine23US 5,435,136 AAisin Seiki Kabushiki Kaisha · 1995
- Superfluid thermodynamic cycle refrigerator17US 5,172,554 AThe United States of America as represented by the United States Department of Energy · 1992
- Heat transfer device for the transport of large conduction flux without net mass transfer15US 4,590,993 AUniversity of Florida · 1986