F25B 43/02
Arrangements for separating or purifying gases or liquids: for separating lubricants from
Official title: for separating lubricants from the refrigerant
F25B43/02 (Arrangements for separating or purifying gases or liquids: for separating lubricants from) appears on 448 US grants and 446 published applications in this corpus.
Search patents in F25B- Granted patents
- 448
- Published applications
- 446
- Assignees
- 211
- Inventors
- 1,046
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 6 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 9 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 9 | 1 |
| 2002 | 9 | 6 |
| 2003 | 8 | 5 |
| 2004 | 4 | 11 |
| 2005 | 5 | 3 |
| 2006 | 7 | 15 |
| 2007 | 7 | 7 |
| 2008 | 2 | 15 |
| 2009 | 3 | 13 |
| 2010 | 7 | 8 |
| 2011 | 8 | 6 |
| 2012 | 6 | 14 |
| 2013 | 8 | 12 |
| 2014 | 8 | 20 |
| 2015 | 10 | 26 |
| 2016 | 14 | 26 |
| 2017 | 23 | 32 |
| 2018 | 24 | 23 |
| 2019 | 29 | 28 |
| 2020 | 30 | 39 |
| 2021 | 36 | 28 |
| 2022 | 24 | 30 |
| 2023 | 23 | 20 |
| 2024 | 27 | 22 |
| 2025 | 17 | 23 |
| 2026 | 11 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Refrigerant circulation system29 Sep 2026US 12,747,898 B2Mazda Motor Corporation
- Oil separation device for condenser, condenser having it and refrigeration system4 Aug 2026US 12,698,929 B2Carrier Corporation
- Compressor including improved oil trap and home appliance including the compressor28 Jul 2026US 12,692,867 B2Samsung Electronics Co., Ltd.
- Refrigeration system with oil control system28 Jul 2026US 12,693,048 B2Hill Phoenix, Inc.
- Refrigeration apparatus21 Jul 2026US 12,687,327 B2Daikin Industries, Ltd.
- Unit comprising a collection tank17 Sep 2026US 2026/0276267 A1Siemens Energy Global GmbH & Co. KG
- Oil conduit system for hvac&r system13 Aug 2026US 2026/0235335 A1Tyco Fire & Security GmbH
- Batch oil return system and method6 Aug 2026US 2026/0227103 A1John Bean Technologies Corporation
- Refrigeration cycle system23 Jul 2026US 2026/0210600 A1Daikin Industries, Ltd.
- System and method for decoupling low-temperature (lt) and medium-temperature (mt) compressors25 Jun 2026US 2026/0177297 A1Heatcraft Refrigeration Products LLC
Most cited
By later US patents
- Compressor unit and separator therefor245US 5,158,585 AHitachi, Ltd. · 1992
- Solid state compressor control system114US 4,227,862 AFrick Company · 1980
- Method and apparatus for measuring and improving efficiency in refrigeration systems95US 6,505,475 B1Hudson Technologies, Inc. · 2003
- Apparatus for separating liquid droplets from gas93US 4,516,994 AVilter Manufacturing Corporation · 1985
- Compressor lubricating oil heater control89US 4,066,869 ACarrier Corporation · 1978