F25B 2341/0016
Ejectors for creating an oil recirculation
F25B2341/0016 (Ejectors for creating an oil recirculation) appears on 36 US grants and 23 published applications in this corpus.
Search patents in F25B- Granted patents
- 36
- Published applications
- 23
- Assignees
- 22
- Inventors
- 100
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 0 | 2 |
| 2014 | 2 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 4 |
| 2017 | 1 | 1 |
| 2018 | 0 | 0 |
| 2019 | 2 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 2 |
| 2022 | 1 | 2 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lubrication system for a compressor18 Aug 2026US 12,710,203 B2Johnson Controls Industries SAS
- Enhanced method of lubrication for refrigeration compressors16 Apr 2024US 11,959,673 B2Carrier Corporation
- Heat exchange system and method for reclaiming corrosion inhibitor in heat exchange system2 Apr 2024US 11,946,673 B2Carrier Corporation
- Two step oil motive eductor system6 Sep 2022US 11,435,116 B2Johnson Controls Tyco IP Holdings LLP
- Cooling system7 Dec 2021US 11,193,699 B2Heatcraft Refrigeration Products LLC
- Lubricant separation system for hvac&r system2 Oct 2025US 2025/0305730 A1Tyco Fire & Security GmbH
- Refrigeration system30 Nov 2023US 2023/0384008 A1Carrier Corporation
- Lubrication system for a compressor29 Sep 2022US 2022/0307739 A1Johnson Controls Industries SAS
- Heat exchange system and method for reclaiming corrosion inhibitor in heat exchange system3 Mar 2022US 2022/0065502 A1Carrier Corporation
- Enhanced method of lubrication for refrigeration compressors12 Aug 2021US 2021/0247115 A1Carrier Corporation
Most cited
By later US patents
- Compressor unit and separator therefor245US 5,158,585 AHitachi, Ltd. · 1992
- Lubrication system for screw compressors using an oil still35US 6,182,467 B2Carrier Corporation · 2001
- Refrigeration chiller oil recovery employing high pressure oil as eductor motive fluid30US 6,233,967 B1American Standard International Inc. · 2001
- Refrigeration system with phase separation24US 6,457,325 B1Modine Manufacturing Company · 2002
- Heat pump system21US 4,843,837 ATechnology Research Association of Super Heat Pump Energy Accumulation System · 1989