F25B 2309/14
Compression machines, plants or systems characterised by the cycle used
F25B2309/14 (Compression machines, plants or systems characterised by the cycle used) appears on 487 US grants and 435 published applications in this corpus.
Search patents in F25B- Granted patents
- 487
- Published applications
- 435
- Assignees
- 225
- Inventors
- 760
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 8 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 14 | 0 |
| 2000 | 11 | 0 |
| 2001 | 19 | 4 |
| 2002 | 24 | 9 |
| 2003 | 18 | 15 |
| 2004 | 17 | 23 |
| 2005 | 7 | 38 |
| 2006 | 27 | 24 |
| 2007 | 27 | 28 |
| 2008 | 13 | 21 |
| 2009 | 16 | 12 |
| 2010 | 3 | 10 |
| 2011 | 4 | 16 |
| 2012 | 7 | 8 |
| 2013 | 12 | 13 |
| 2014 | 6 | 18 |
| 2015 | 11 | 22 |
| 2016 | 8 | 19 |
| 2017 | 26 | 22 |
| 2018 | 21 | 12 |
| 2019 | 22 | 26 |
| 2020 | 17 | 21 |
| 2021 | 17 | 13 |
| 2022 | 24 | 19 |
| 2023 | 17 | 15 |
| 2024 | 12 | 13 |
| 2025 | 8 | 5 |
| 2026 | 5 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F25B 2309/1424Pulse tubes with basic schematic including an orifice and a reservoirIndexing code129
- F25B 2309/1408Pulse-tube cycles with pulse tube having u-turn or l-turn type geometrical arrangementsIndexing code126
- F25B 2309/1418Pulse-tube cycles with valves in gas supply and return linesIndexing code101
- F25B 2309/1407Pulse-tube cycles with pulse tube having in-line geometrical arrangementsIndexing code75
- F25B 2309/1428Control of a stirling refrigeration machineIndexing code65
- F25B 2309/1411Pulse-tube cycles characterised by control detailsIndexing code63
- F25B 2309/1415Pulse-tube cycles characterised by regenerator detailsIndexing code60
- F25B 2309/1412Pulse-tube cycles characterised by heat exchanger detailsIndexing code55
All 26 subgroupsShow fewer
- F25B 2309/1413Pulse-tube cycles characterised by performance, geometry or theoryIndexing code53
- F25B 2309/1403Pulse-tube cycles with heat input into acoustic driverIndexing code50
- F25B 2309/1406Pulse-tube cycles with pulse tube in co-axial or concentric geometrical arrangementsIndexing code44
- F25B 2309/1421Pulse-tube cycles characterised by details not otherwise provided forIndexing code44
- F25B 2309/1402Pulse-tube cycles with acoustic driverIndexing code37
- F25B 2309/1423Pulse tubes with basic schematic including an inertance tubeIndexing code37
- F25B 2309/1425Pulse tubes with basic schematic including several pulse tubesIndexing code32
- F25B 2309/1416Pulse-tube cycles characterised by regenerator stack detailsIndexing code29
- F25B 2309/1417Pulse-tube cycles without any valves in gas supply and return linesIndexing code28
- F25B 2309/1404Pulse-tube cycles with loudspeaker driven acoustic driverIndexing code27
- F25B 2309/1414Pulse-tube cycles characterised by pulse tube detailsIndexing code27
- F25B 2309/1405Pulse-tube cycles with travelling wavesIndexing code25
- F25B 2309/1427Control of a pulse tubeIndexing code23
- F25B 2309/1426Pulse tubes with basic schematic including at the pulse tube warm endIndexing code20
- F25B 2309/1401Ericsson or ericcson cyclesIndexing code16
- F25B 2309/1419Pulse-tube cycles with pulse tube having a basic pulse tube refrigerator [ptr]Indexing code12
- F25B 2309/1409Pulse-tube cycles with pulse tube having special type of geometrical arrangements notIndexing code6
- F25B 2309/1422Pulse tubes with basic schematic including a counter flow heat exchanger insteadIndexing code5
Recent patents
- Hybrid double-inlet valve for pulse tube cryocooler6 Oct 2026US 12,753,954 B2Sumitomo (SHI) Cryogenics of America, Inc.
- Cryocooler and monitoring method for cryocooler8 Sep 2026US 12,729,894 B2Sumitomo Heavy Industries, Ltd.
- Device for the suppression of acoustic streaming in thermoacoustic systems25 Aug 2026US 12,716,622 B2Nederlandse Organisatie voor toegepast-natuurwetenschappelijk onderzoek TNO
- Gas energized seal for Gifford-McMahon expander26 May 2026US 12,638,220 B2Sumitomo (Shi) Cryogenic of America, Inc.
- Heat exchanger for cryogenic cooling apparatus19 May 2026US 12,631,375 B2Oxford NanoScience Limited
- Cryocooler and monitoring method for cryocooler1 Oct 2026US 2026/0298517 A1Sumitomo Heavy Industries, Ltd.
- Cryogenic Refrigeration Heat Exchange Systems and Methods3 Sep 2026US 2026/0258985 A1Boston Cryogenics LLC
- Solar driven thermoacoustic refrigerator21 May 2026US 2026/0139880 A1
- Method of enabling a remote heatsink using a thermoacoustic heat pump in a computing device21 May 2026US 2026/0143626 A1Lenovo Global Technology (United States) Inc.
- Cryogenic cooling system with a resonant expander2 Apr 2026US 2026/0092725 A1R7 Instruments, Inc.
Most cited
By later US patents
- Microcomponent chemical process sheet architecture299US 5,811,062 ABattelle Memorial Institute · 1998
- Microcomponent sheet architecture190US 5,611,214 ABattelle Memorial Institute · 1997
- Ericsson cycle machine93US 4,984,432 A1991
- Portable insulated container with refrigeration89US 6,751,963 B2The Coleman Company, Inc. · 2004
- Electronic controller for linear cryogenic coolers86US 5,752,385 ALitton Systems, Inc. · 1998