F25B 2309/1416
Pulse-tube cycles characterised by regenerator stack details
F25B2309/1416 (Pulse-tube cycles characterised by regenerator stack details) appears on 29 US grants and 22 published applications in this corpus.
Search patents in F25B- Granted patents
- 29
- Published applications
- 22
- Assignees
- 23
- Inventors
- 53
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 0 |
| 2006 | 1 | 3 |
| 2007 | 2 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 2 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for the suppression of acoustic streaming in thermoacoustic systems25 Aug 2026US 12,716,622 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Thermoacoustic 3D printed stack and heat exchanger3 Oct 2023US 11,774,194 B2The Government of the United States of America, as represented by the Secretary of Homeland Security
- 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
- Cold head, superconducting magnet, examination apparatus, and cryopump20 Dec 2022US 11,530,846 B2Kabushiki Kaisha Toshiba
- Cryocooler with heat transfer blocks having fins19 Oct 2021US 11,149,993 B2Sumitomo Heavy Industries, Ltd.
- Enhancement of the thermoacoustic effect8 Jan 2026US 2026/0009596 A1Technion Research & Development Foundation Limited
- Device for the Suppression of Acoustic Streaming in Thermoacoustic Systems21 Mar 2024US 2024/0093917 A1Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- 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
- Thermoacoustic 3d printed stack and heat exchanger4 Aug 2022US 2022/0244002 A1The Government of the United States of America, as represented by the Secretary of Homeland Security
- Cold head, superconducting magnet, examination apparatus, and cryopump5 Nov 2020US 2020/0348052 A1Kabushiki Kaisha Toshiba
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
- Acoustic cryocooler58US 4,953,366 AThe United States of America as represented by the United States Department of Energy · 1990
- Acoustical heat pumping engine55US 4,398,398 A1983
- 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