F25B 2309/1418
Pulse-tube cycles with valves in gas supply and return lines
F25B2309/1418 (Pulse-tube cycles with valves in gas supply and return lines) appears on 101 US grants and 95 published applications in this corpus.
Search patents in F25B- Granted patents
- 101
- Published applications
- 95
- Assignees
- 45
- Inventors
- 164
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 6 | 3 |
| 2003 | 5 | 3 |
| 2004 | 2 | 6 |
| 2005 | 0 | 10 |
| 2006 | 6 | 5 |
| 2007 | 9 | 11 |
| 2008 | 1 | 6 |
| 2009 | 8 | 6 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 3 | 3 |
| 2014 | 1 | 3 |
| 2015 | 2 | 4 |
| 2016 | 3 | 2 |
| 2017 | 3 | 5 |
| 2018 | 5 | 2 |
| 2019 | 3 | 5 |
| 2020 | 2 | 2 |
| 2021 | 7 | 4 |
| 2022 | 2 | 4 |
| 2023 | 3 | 0 |
| 2024 | 1 | 4 |
| 2025 | 0 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid double-inlet valve for pulse tube cryocooler6 Oct 2026US 12,753,954 B2Sumitomo (SHI) Cryogenics of America, Inc.
- Rotary valve of cryocooler and cryocooler30 Apr 2024US 11,971,108 B2Sumitomo Heavy Industries, Ltd.
- Cryocooler and control method of cryocooler19 Dec 2023US 11,846,458 B2Sumitomo Heavy Industries, Ltd.
- Thermoacoustic refrigerator18 Jul 2023US 11,703,255 B2Sintokogio, Ltd.
- Co-axtal, double-inlet valve for pulse tube cryocooler14 Mar 2023US 11,604,010 B2Sumitomo (SHI) Cryogenics of America, Inc.
- Gas-driven cryocooler22 Jan 2026US 2026/0022871 A1Sumitomo Heavy Industries, Ltd.
- Cryocooling system26 Jun 2025US 2025/0207824 A1Government of the United States of America, AS Represented By the Secretary of Commerce
- Gas replacement method for expander of cryocooler, cryocooler, and gas replacement pipe19 Dec 2024US 2024/0418438 A1Sumitomo Heavy Industries, Ltd.
- Dynamic acoustic impedance matching for cryocoolers15 Aug 2024US 2024/0271834 A1The Regents of the University of Colorado, a body corporate
- Pulse tube cryocooler and method for cooling down pulse tube cryocooler13 Jun 2024US 2024/0191913 A1Sumitomo Heavy Industries, Ltd.
Most cited
By later US patents
- Pulse tube refrigerator39US 5,412,952 AKabushiki Kaisha Toshiba · 1995
- Pulse-tube cryorefrigeration apparatus using an integrated buffer volume38US 6,378,312 B1Cryomech, Inc. · 2002
- Superconducting magnet system outfitted with cooling apparatus37US 5,966,944 AAisin Seiki Kabushiki Kaisha · 1999
- Cooling system having plural cooling stages in which refrigerate-filled chamber type refrigerators are used32US 5,647,218 AKabushiki Kaisha Toshiba · 1997
- Pulse tube refrigerator30US 5,335,505 AKabushiki Kaisha Toshiba · 1994