F25B 2309/1417
Pulse-tube cycles without any valves in gas supply and return lines
F25B2309/1417 (Pulse-tube cycles without any valves in gas supply and return lines) appears on 28 US grants and 7 published applications in this corpus.
Search patents in F25B- Granted patents
- 28
- Published applications
- 7
- Assignees
- 21
- Inventors
- 54
- Latest grant
- 15 Apr 2014
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Pulse tube cryocooler modulating phase via inertance tube and acoustic power amplifier thereof15 Apr 2014US 8,695,356 B2Zhejiang University
- Pressure wave generator8 May 2012US 8,171,742 B2Industrial Research Limited
- Acoustic cooling device with coldhead and resonant driver separated8 Dec 2009US 7,628,022 B2Clever Fellows Innovation Consortium, Inc.
- Multi-stage pulse tube cryocooler with acoustic impedance constructed to reduce transient cool down time and thermal loss21 Oct 2008US 7,437,878 B2SunPower Corporation
- Cooling load enclosed in pulse tube cooler13 Feb 2007US 7,174,721 B2
- Pulse tube cryocooler modulating phase via inertance tube and acoustic power amplifier thereof3 May 2012US 2012/0102976 A1Zhejiang University
- Pressure Wave Generator16 Oct 2008US 2008/0253910 A1Industrial Research Limited
- Multi-stage pulse tube cryocooler with acoustic impedance constructed to reduce transient cool down time and thermal loss25 Sep 2008US 2008/0229760 A1SunPower Corporation
- Acoustic cooling device with coldhead and resonant driver separated3 May 2007US 2007/0095074 A1Clever Fellows Innovation Consortium, Inc.
- Pulse tube refrigerating machine4 Jan 2007US 2007/0000257 A1Aisin Seiki Kabushiki Kaisha
Most cited
By later US patents
- Electronics package with improved thermal management by thermoacoustic heat pumping68US 5,303,555 AInternational Business Machines Corporation · 1994
- Intrinsically irreversible heat engine59US 4,489,553 AThe United States of America as represented by the United States Department of Energy · 1984
- Pulse tube refrigerator39US 5,412,952 AKabushiki Kaisha Toshiba · 1995
- Pulse tube refrigerating system35US 5,275,002 AAisin Newhard Co., Ltd. · 1994
- Pulse tube refrigerating system33US 5,269,147 AAisin Seiki Kabushiki Kaisha · 1993