F25B 2309/1427
Control of a pulse tube
F25B2309/1427 (Control of a pulse tube) appears on 23 US grants and 27 published applications in this corpus.
Search patents in F25B- Granted patents
- 23
- Published applications
- 27
- Assignees
- 15
- Inventors
- 46
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 3 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 2 |
| 2021 | 2 | 2 |
| 2022 | 2 | 4 |
| 2023 | 6 | 2 |
| 2024 | 1 | 3 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Cryocooler and monitoring method for cryocooler8 Sep 2026US 12,729,894 B2Sumitomo Heavy Industries, Ltd.
- Starting method for cryocooler and cryocooler11 Jun 2024US 12,007,152 B2Sumitomo Heavy Industries, Ltd.
- Noise reduction method5 Dec 2023US 11,835,279 B2Oxford Instruments Nanotechnology Tools Limited
- Cryogenic device and cryostat7 Nov 2023US 11,808,504 B2Sumitomo Heavy Industries, Ltd.
- Asynchronous drive of cryocooling systems for low temperature applications12 Sep 2023US 11,754,323 B2International Business Machines Corporation
- Cryocooler and monitoring method for cryocooler1 Oct 2026US 2026/0298517 A1Sumitomo Heavy Industries, Ltd.
- Cryocooling system26 Jun 2025US 2025/0207824 A1Government of the United States of America, AS Represented By the Secretary of Commerce
- Method for operating cryocooler9 Jan 2025US 2025/0012486 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
- Double inlet arrangement for pulse tube refrigerator with vortex heat exchanger10US 6,442,947 B12002
- Rotary valve unit in a pulse tube refrigerator10US 6,460,349 B1Aisin Seiki Kabushiki Kaisha · 2002
- Cryopump with two-stage pulse tube refrigerator7US 7,114,341 B2SHI-APD Cryogenics, Inc. · 2006
- Pulse tube refrigerator4US 6,393,845 B1Aisin Seiki Kabushiki Kaisha · 2002
- Monitoring method and cooling system2US 10,047,977 B2Sumitomo Heavy Industries, Ltd. · 2018