F25B 1/10
Compression machines, plants or systems with non-reversible cycle: with multi-stage compression
Official title: with multi-stage compression (with cascade operation F25B7/00)
F25B1/10 (Compression machines, plants or systems with non-reversible cycle: with multi-stage compression) appears on 1,144 US grants and 1,348 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,144
- Published applications
- 1,348
- Assignees
- 337
- Inventors
- 2,026
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 5 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 11 | 0 |
| 1992 | 15 | 0 |
| 1993 | 10 | 0 |
| 1994 | 2 | 0 |
| 1995 | 8 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 11 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 3 |
| 2002 | 18 | 9 |
| 2003 | 18 | 21 |
| 2004 | 17 | 27 |
| 2005 | 25 | 47 |
| 2006 | 24 | 51 |
| 2007 | 33 | 27 |
| 2008 | 16 | 54 |
| 2009 | 12 | 37 |
| 2010 | 32 | 72 |
| 2011 | 20 | 60 |
| 2012 | 24 | 47 |
| 2013 | 34 | 51 |
| 2014 | 35 | 58 |
| 2015 | 34 | 66 |
| 2016 | 45 | 46 |
| 2017 | 61 | 69 |
| 2018 | 68 | 71 |
| 2019 | 77 | 73 |
| 2020 | 60 | 59 |
| 2021 | 54 | 65 |
| 2022 | 68 | 76 |
| 2023 | 58 | 65 |
| 2024 | 70 | 70 |
| 2025 | 61 | 66 |
| 2026 | 28 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Using carbon dioxide from a direct air capture system as a low global warming car and industrial refrigerant25 Aug 2026US 12,716,620 B2AirMyne, Inc.
- CO2 refrigeration system with convertible compressors25 Aug 2026US 12,716,621 B2Hill Phoenix, Inc.
- Static gas thrust bearing18 Aug 2026US 12,710,050 B2Garrett Transportation I Inc.
- Systems and methods for controlling capacity of a compressor8 Oct 2026US 2026/0309355 A1Tyco Fire & Security GmbH
- Heat Pump Systems and Methods17 Sep 2026US 2026/0276247 A1AtmosZero, Inc.
- Variable geometry regulation system of a compressor for a heating, ventilation, air conditioning, and/or refrigeration system10 Sep 2026US 2026/0266512 A1Tyco Fire & Security GmbH
- Injection and capacity control in an hvacr system10 Sep 2026US 2026/0266518 A1Trane Air Conditioning Systems (China) Co., Ltd.
- Compressor system for heating, ventilation, air conditioning & refrigeration system3 Sep 2026US 2026/0258981 A1Tyco Fire & Security GmbH
Most cited
By later US patents
- Energy management system for refrigeration systems209US 4,325,223 A1982
- Economizer control with variable capacity193US 5,095,712 ACarrier Corporation · 1992
- Compressor149US 5,857,348 AMultistack International Limited · 1999
- Heat management system for aircraft140US 4,505,124 AThe United States of America as represented by the Secretary of the Air Force · 1985
- Refrigerant compressor apparatus111US 6,401,472 B2BITZER Kuehlmaschinenbau GmbH · 2002