F25B 43/00
Arrangements for separating or purifying gases or liquids
Official title: Arrangements for separating or purifying gases or liquids (in analysers or rectifiers F25B33/00); Arrangements for vaporising the residuum of liquid refrigerant, e.g. by heat (F25B40/00 takes precedence)
F25B43/00 (Arrangements for separating or purifying gases or liquids) appears on 1,886 US grants and 1,694 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,886
- Published applications
- 1,694
- Assignees
- 616
- Inventors
- 3,602
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 16 | 0 |
| 1977 | 11 | 0 |
| 1978 | 15 | 0 |
| 1979 | 8 | 0 |
| 1980 | 22 | 0 |
| 1981 | 16 | 0 |
| 1982 | 18 | 0 |
| 1983 | 9 | 0 |
| 1984 | 18 | 0 |
| 1985 | 13 | 0 |
| 1986 | 17 | 0 |
| 1987 | 17 | 0 |
| 1988 | 15 | 0 |
| 1989 | 14 | 0 |
| 1990 | 21 | 0 |
| 1991 | 36 | 0 |
| 1992 | 20 | 0 |
| 1993 | 29 | 0 |
| 1994 | 21 | 0 |
| 1995 | 23 | 0 |
| 1996 | 33 | 0 |
| 1997 | 26 | 0 |
| 1998 | 42 | 0 |
| 1999 | 41 | 0 |
| 2000 | 34 | 0 |
| 2001 | 63 | 9 |
| 2002 | 64 | 32 |
| 2003 | 47 | 43 |
| 2004 | 29 | 34 |
| 2005 | 25 | 48 |
| 2006 | 32 | 42 |
| 2007 | 26 | 40 |
| 2008 | 13 | 48 |
| 2009 | 13 | 33 |
| 2010 | 22 | 27 |
| 2011 | 24 | 28 |
| 2012 | 11 | 40 |
| 2013 | 16 | 65 |
| 2014 | 30 | 50 |
| 2015 | 31 | 63 |
| 2016 | 46 | 99 |
| 2017 | 69 | 121 |
| 2018 | 69 | 104 |
| 2019 | 119 | 101 |
| 2020 | 102 | 118 |
| 2021 | 86 | 97 |
| 2022 | 101 | 108 |
| 2023 | 90 | 88 |
| 2024 | 87 | 100 |
| 2025 | 88 | 89 |
| 2026 | 48 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vapor-liquid separator and systems including same29 Sep 2026US 12,747,897 B2Copeland Corporation
- Refrigerant circulation system29 Sep 2026US 12,747,898 B2Mazda Motor Corporation
- Heat pump, method for operating a heat pump, and transportation vehicle with a heat pump15 Sep 2026US 12,736,256 B2Volkswagen Aktiengesellschaft
- Heat exchanger systems8 Sep 2026US 12,729,893 B2
- Refrigerant liquid-gas separator25 Aug 2026US 12,716,628 B2Bergstrom, Inc.
- Multi-gravitational force vapor cycle receiver1 Oct 2026US 2026/0298515 A1Honeywell International Inc.
- Indirect thermal management system for new energy vehicles24 Sep 2026US 2026/0287222 A1
- Systems and methods for removing contaminants from the fluid circulation system of a dilution refrigerator24 Sep 2026US 2026/0287228 A1Anyon Systems Inc.
- Unit comprising a collection tank17 Sep 2026US 2026/0276267 A1Siemens Energy Global GmbH & Co. KG
- Method and apparatus for handling refrigerant17 Sep 2026US 2026/0276269 A1SK Innovation Co., Ltd.
Most cited
By later US patents
- Compressor unit and separator therefor245US 5,158,585 AHitachi, Ltd. · 1992
- System and method for diagnosing the operation of air conditioner systems131US 4,967,567 AMurray, Inc. · 1990
- Solid state compressor control system114US 4,227,862 AFrick Company · 1980
- System for cooling electric vehicle batteries106US 6,138,466 ADaimlerChrysler AG · 2000
- Method and apparatus for measuring and improving efficiency in refrigeration systems95US 6,505,475 B1Hudson Technologies, Inc. · 2003