F25B 2309/1412
Pulse-tube cycles characterised by heat exchanger details
F25B2309/1412 (Pulse-tube cycles characterised by heat exchanger details) appears on 55 US grants and 43 published applications in this corpus.
Search patents in F25B- Granted patents
- 55
- Published applications
- 43
- Assignees
- 43
- Inventors
- 140
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 3 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 8 |
| 2005 | 1 | 4 |
| 2006 | 7 | 1 |
| 2007 | 3 | 3 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 0 | 4 |
| 2017 | 1 | 2 |
| 2018 | 1 | 2 |
| 2019 | 1 | 3 |
| 2020 | 2 | 1 |
| 2021 | 4 | 2 |
| 2022 | 2 | 2 |
| 2023 | 2 | 1 |
| 2024 | 1 | 4 |
| 2025 | 2 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat exchanger for cryogenic cooling apparatus19 May 2026US 12,631,375 B2Oxford NanoScience Limited
- Hydrogen or helium throttling liquefaction system using direct current flow from the cold and hot ends of the regenerative cryocoolers23 Dec 2025US 12,504,225 B2Zhejiang University
- Sub-kelvin temperature zone refrigeration mechanism8 Jul 2025US 12,352,488 B2Shanghai Institute of Technical Physics, Chinese Academy of Sciences
- Coaxial pulse tube cryocoolers26 Nov 2024US 12,152,821 B1Boscryo LLC
- Cryogenic device and cryostat7 Nov 2023US 11,808,504 B2Sumitomo Heavy Industries, Ltd.
- A hydrogen or helium throttling liquefaction system using direct current flow from the cold and hot ends of the regenerative cryocoolers8 Aug 2024US 2024/0263871 A1Zhejiang University
- Pulse tube cryocooler and method for cooling down pulse tube cryocooler13 Jun 2024US 2024/0191913 A1Sumitomo Heavy Industries, Ltd.
- Heat exchanger for cryogenic cooling apparatus23 May 2024US 2024/0167739 A1Oxford Instruments Nanotechnology Tools Limited
- Sub-kelvin temperature zone refrigeration mechanism28 Mar 2024US 2024/0102701 A1Shanghai Institute of Technical Physics, Chinese Academy of Sciences
- Cold storage material, cold storage material particle, granulated particle, cold storage device, refrigerator, cryopump, superconducting magnet, nuclear magnetic resonance imaging apparatus, nuclear magnetic resonance apparatus, magnetic field application type single crystal pulling apparatus, and helium re-condensing device28 Sep 2023US 2023/0303904 A1Kabushiki Kaisha Toshiba
Most cited
By later US patents
- Portable insulated container with refrigeration89US 6,751,963 B2The Coleman Company, Inc. · 2004
- Traveling wave heat engine65US 4,114,380 A1978
- Thermoacoustic resonator50US 6,385,972 B12002
- 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
- High-power thermoacoustic refrigerator45US 5,647,216 AThe United States of America as represented by the Secretary of the Navy · 1997