F25B 2309/1406
Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements
F25B2309/1406 (Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangements) appears on 44 US grants and 37 published applications in this corpus.
Search patents in F25B- Granted patents
- 44
- Published applications
- 37
- Assignees
- 32
- Inventors
- 73
- Latest grant
- 28 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 2 |
| 2004 | 1 | 4 |
| 2005 | 2 | 1 |
| 2006 | 4 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 0 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 2 |
| 2014 | 0 | 2 |
| 2015 | 1 | 1 |
| 2016 | 0 | 3 |
| 2017 | 3 | 3 |
| 2018 | 3 | 1 |
| 2019 | 3 | 5 |
| 2020 | 2 | 2 |
| 2021 | 1 | 0 |
| 2022 | 2 | 1 |
| 2023 | 1 | 0 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Cryocooler and magnetic shield28 Oct 2025US 12,456,566 B2Sum Itomo Heavy Industries, Ltd.
- Heat exchanger with a glass body31 Dec 2024US 12,181,229 B2Raytheon Company
- Coaxial pulse tube cryocoolers26 Nov 2024US 12,152,821 B1Boscryo LLC
- Cryocooler31 Jan 2023US 11,566,821 B2Sumitomo Heavy Industries, Ltd.
- GM cryocooler12 Jul 2022US 11,384,963 B2Sumitomo Heavy Industries, Ltd.
- Cryocooler and magnetic shield25 Aug 2022US 2022/0270796 A1Sumitomo Heavy Industries, Ltd.
- Cryocooler and magnetic shield23 Jan 2020US 2020/0027633 A1Sumitomo Heavy Industries, Ltd.
- Cryocooler2 Jan 2020US 2020/0003460 A1Sumitomo Heavy Industries, Ltd.
- Cryogenic cooling apparatus21 Nov 2019US 2019/0353419 A1Kabushiki Kaisha Toshiba
- Gm cryocooler12 Sep 2019US 2019/0277542 A1Sumitomo Heavy Industries, Ltd.
Most cited
By later US patents
- Electronics package with improved thermal management by thermoacoustic heat pumping68US 5,303,555 AInternational Business Machines Corporation · 1994
- Multi-bypass pulse tube refrigerator44US 5,295,355 ACryogenic Laboratory of Chinese Academy of Sciences · 1994
- Cryostat systems29US 6,196,005 B1Oxford Magnet Technology Limited · 2001
- Pulse tube heat engine23US 5,435,136 AAisin Seiki Kabushiki Kaisha · 1995
- Apparatus and method for achieving temperature stability in a two-stage cryocooler22US 6,330,800 B1Raytheon Company · 2001