F25B 2309/001
Gas cycle refrigeration machines: with a linear configuration or a linear motor
Official title: with a linear configuration or a linear motor
F25B2309/001 (Gas cycle refrigeration machines: with a linear configuration or a linear motor) appears on 171 US grants and 120 published applications in this corpus.
Search patents in F25B- Granted patents
- 171
- Published applications
- 120
- Assignees
- 67
- Inventors
- 279
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 4 |
| 2002 | 11 | 5 |
| 2003 | 2 | 7 |
| 2004 | 9 | 9 |
| 2005 | 4 | 9 |
| 2006 | 9 | 3 |
| 2007 | 6 | 6 |
| 2008 | 1 | 3 |
| 2009 | 0 | 1 |
| 2010 | 4 | 2 |
| 2011 | 1 | 3 |
| 2012 | 1 | 2 |
| 2013 | 3 | 7 |
| 2014 | 4 | 3 |
| 2015 | 2 | 6 |
| 2016 | 4 | 4 |
| 2017 | 5 | 6 |
| 2018 | 7 | 5 |
| 2019 | 6 | 7 |
| 2020 | 4 | 7 |
| 2021 | 3 | 5 |
| 2022 | 9 | 5 |
| 2023 | 3 | 6 |
| 2024 | 3 | 4 |
| 2025 | 3 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compact integral Stirling linear cryocooler28 Jul 2026US 12,693,049 B2Cryo Tech Ltd.
- Cryocooler magnetic displacer spring10 Mar 2026US 12,571,566 B2Teledyne FLIR Commercial Systems, Inc.
- Cryocooler and magnetic shield28 Oct 2025US 12,456,566 B2Sum Itomo Heavy Industries, Ltd.
- Cryocooler7 Oct 2025US 12,435,910 B2Lihan Cryogenics Co., Ltd., Shenzhen (Cn)
- Serially arranged circulating cryocooler system18 Mar 2025US 12,253,289 B2Sumitomo (Shi) Crygenics of America, Inc.
- Cryogenic cooling system with a resonant expander2 Apr 2026US 2026/0092725 A1R7 Instruments, Inc.
- Gifford-mcmahon (gm) cryocooler first-stage displacer, first-stage displacer assembly, and gifford-mcmahon cryocooler14 Nov 2024US 2024/0377108 A1Sumitomo Heavy Industries, Ltd.
- Compact integral stirling linear cryocooler22 Aug 2024US 2024/0280298 A1Cryo Tech Ltd.
- Cryogenic refrigerator of stirling type with dual-piston compressor and concealed expander11 Jul 2024US 2024/0230168 A1Cryo Tech Ltd.
- Expander unit with magnetic spring for a split stirling cryogenic refrigeration device18 Apr 2024US 2024/0128118 A1Cryo Tech Ltd.
Most cited
By later US patents
- Temperature control system for a cryogenic refrigeration89US 5,018,357 AHelix Technology Corporation · 1991
- Electronic controller for linear cryogenic coolers86US 5,752,385 ALitton Systems, Inc. · 1998
- Stirling cycle cryogenic cooler63US 4,389,849 A1983
- Motor driver circuit for resonant linear cooler50US 5,032,772 A1991
- Resonantly coupled .alpha.-stirling cooler48US 5,813,235 AState of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University · 1998