F25B 2309/1407
Pulse-tube cycles with pulse tube having in-line geometrical arrangements
F25B2309/1407 (Pulse-tube cycles with pulse tube having in-line geometrical arrangements) appears on 75 US grants and 51 published applications in this corpus.
Search patents in F25B- Granted patents
- 75
- Published applications
- 51
- Assignees
- 47
- Inventors
- 134
- Latest grant
- 16 May 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 2 |
| 2002 | 11 | 1 |
| 2003 | 6 | 9 |
| 2004 | 7 | 5 |
| 2005 | 1 | 8 |
| 2006 | 5 | 5 |
| 2007 | 7 | 0 |
| 2008 | 1 | 3 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 1 |
| 2015 | 2 | 3 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 2 |
| 2019 | 4 | 1 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 2 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Double-ended thermoacoustic heat exchanger16 May 2023US 11,649,991 B2The Government of the United States of America, as represented by the Secretary of Homeland Security
- Cryogenic refrigerator and heating method for pulse tube cryocooler10 May 2022US 11,326,811 B2Sumitomo Heavy Industries, Ltd.
- Thermoacoustic refrigerator17 Mar 2020US 10,591,187 B2Siddons Enertec Pty Ltd
- Pulse-tube refrigerator4 Feb 2020US 10,551,092 B2Sumitomo Heavy Industries, Ltd.
- Pulse tube cryocooler with axially-aligned components31 Dec 2019US 10,520,227 B2Raytheon Company
- Regenerative cryogenic machine13 Oct 2022US 2022/0325922 A1Absolut System
- Double-ended thermoacoustic heat exchanger1 Sep 2022US 2022/0275978 A1The Government of the United States of America, as represented by the Secretary of Homeland Security
- Cryogenic refrigerator and heating method for pulse tube cryocooler28 May 2020US 2020/0166247 A1Sumitomo Heavy Industries, Ltd.
- Pulse tube cryocooler with axially-aligned components14 Mar 2019US 2019/0078814 A1Raytheon Company
- Thermo-acoustic heat pump20 Sep 2018US 2018/0266733 A1Stichting Energieonderzoek Centrum Nederland
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
- High-efficiency heat-driven acoustic cooling engine with no moving parts46US 5,901,556 AThe United States of America as represented by the Secretary of the Navy · 1999
- Acoustic cooling engine44US 4,722,201 AThe United States of America as represented by the United States Department of Energy · 1988
- Heat-driven acoustic cooling engine having no moving parts39US 4,858,441 AThe United States of America as represented by the United States Department of Energy · 1989
- Pulse tube refrigerator39US 5,412,952 AKabushiki Kaisha Toshiba · 1995