F25B 2341/0015
Using two or more ejectors
Official title: using two or more ejectors
F25B2341/0015 (Using two or more ejectors) appears on 67 US grants and 68 published applications in this corpus.
Search patents in F25B- Granted patents
- 67
- Published applications
- 68
- Assignees
- 30
- Inventors
- 135
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 1 |
| 2002 | 2 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 0 | 5 |
| 2014 | 1 | 1 |
| 2015 | 0 | 3 |
| 2016 | 3 | 6 |
| 2017 | 3 | 7 |
| 2018 | 4 | 8 |
| 2019 | 4 | 1 |
| 2020 | 9 | 5 |
| 2021 | 5 | 2 |
| 2022 | 4 | 6 |
| 2023 | 6 | 3 |
| 2024 | 4 | 1 |
| 2025 | 1 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for detection and correction of reverse flow in an ejector refrigeration circuit6 Oct 2026US 12,753,952 B2Carrier Corporation
- Air conditioner13 May 2025US 12,298,046 B2Daikin Industries, Ltd.
- Ejector refrigeration circuit10 Dec 2024US 12,163,705 B2Carrier Corporation
- Climate control system with a controlled ejector30 Jul 2024US 12,049,123 B2Volkswagen Aktiengesellschaft
- Refrigeration system with a plurality of steam ejectors connected to a plurality of flow traps18 Jun 2024US 12,013,164 B2Carrier Corporation
- Vapor refrigeration system and method for using same22 Jan 2026US 2026/0022867 A1Elkhorn Products Inc.
- System and method for map-interpolation based control of ejectors in an ejector refrigeration circuit24 Apr 2025US 2025/0129978 A1Carrier Corporation
- System and method for detection and correction of reverse flow in an ejector refrigeration circui13 Mar 2025US 2025/0085033 A1Carrier Corporation
- System and method for controlling a plurality of ejectors in an ejector refrigeration circuit13 Feb 2025US 2025/0052465 A1Carrier Corporation
- Direct Expansion (DX) Refrigerant Evaporator with Liquid Ejector23 Jan 2025US 2025/0027693 A1
Most cited
By later US patents
- Pressure exchanging ejector and refrigeration apparatus and method84US 5,647,221 AThe George Washington University · 1997
- Combined engine cooling system and waste-heat driven heat pump46US 4,342,200 ADaeco Fuels and Engineering Company · 1982
- Apparatus for a refrigeration circuit31US 4,242,885 ASulzer Brothers Limited · 1981
- High efficiency refrigeration system30US 6,250,086 B1Vortex Aircon, Inc. · 2001
- Refrigerant cycle system with ejector pump27US 6,675,609 B2Denso Corporation · 2004