F25B 2309/1423
Pulse tubes with basic schematic including an inertance tube
F25B2309/1423 (Pulse tubes with basic schematic including an inertance tube) appears on 37 US grants and 33 published applications in this corpus.
Search patents in F25B- Granted patents
- 37
- Published applications
- 33
- Assignees
- 26
- Inventors
- 77
- Latest grant
- 31 Dec 2019
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 1 |
| 2002 | 3 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 3 |
| 2005 | 1 | 2 |
| 2006 | 5 | 2 |
| 2007 | 2 | 4 |
| 2008 | 3 | 5 |
| 2009 | 2 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 2 | 2 |
| 2015 | 3 | 2 |
| 2016 | 0 | 1 |
| 2017 | 3 | 1 |
| 2018 | 3 | 0 |
| 2019 | 3 | 1 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Pulse tube cryocooler with axially-aligned components31 Dec 2019US 10,520,227 B2Raytheon Company
- Cryogenic regenerator and cryogenic refrigerator2 Apr 2019US 10,247,451 B2Sumitomo Heavy Industries, Ltd.
- Passive phase change cooling device5 Mar 2019US 10,222,097 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Multistage pulse tube coolers13 Nov 2018US 10,126,023 B2The Aerospace Corporation
- Pulse tube cryogenic cooler with tunable inertance tube23 Oct 2018US 10,107,528 B1The United States of America as represented by the Secretary of the Air Force
- Regenerative cryogenic machine13 Oct 2022US 2022/0325922 A1Absolut System
- Pulse tube cryocooler with axially-aligned components14 Mar 2019US 2019/0078814 A1Raytheon Company
- Cryogenic regenerator and cryogenic refrigerator16 Feb 2017US 2017/0045274 A1Sumitomo Heavy Industries, Ltd.
- Multistage pulse tube coolers25 Aug 2016US 2016/0245553 A1The Aerospace Corporation
- Frequency-matched cryocooler scaling for low-cost, minimal disturbance space cooling17 Dec 2015US 2015/0362221 A1Raytheon Company
Most cited
By later US patents
- Pulse tube refrigerator with variable phase shift20US 6,021,643 AThe Regents of the University of California · 2000
- Pulse tube refrigerator18US 5,966,943 A1999
- Densifier for simultaneous conditioning of two cryogenic liquids14US 7,347,053 B1Sierra Lobo, Inc. · 2008
- Pulse tube refrigerating system10US 6,082,117 AAisin Seiki Kabushiki Kaisha · 2000
- Densifier for simultaneous conditioning of two cryogenic liquids10US 7,043,925 B2Sierra Lobo, Inc. · 2006