F25B 6/00
Compression machines, plants or systems, with several condenser circuits
F25B6/00 (Compression machines, plants or systems, with several condenser circuits) appears on 849 US grants and 1,042 published applications in this corpus.
Search patents in F25B- Granted patents
- 849
- Published applications
- 1,042
- Assignees
- 345
- Inventors
- 1,846
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 6 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 0 |
| 2002 | 7 | 11 |
| 2003 | 18 | 13 |
| 2004 | 9 | 16 |
| 2005 | 6 | 18 |
| 2006 | 17 | 20 |
| 2007 | 14 | 16 |
| 2008 | 9 | 12 |
| 2009 | 6 | 9 |
| 2010 | 6 | 6 |
| 2011 | 7 | 16 |
| 2012 | 4 | 15 |
| 2013 | 5 | 27 |
| 2014 | 6 | 50 |
| 2015 | 18 | 58 |
| 2016 | 22 | 59 |
| 2017 | 48 | 70 |
| 2018 | 63 | 75 |
| 2019 | 67 | 89 |
| 2020 | 75 | 74 |
| 2021 | 58 | 75 |
| 2022 | 77 | 89 |
| 2023 | 51 | 75 |
| 2024 | 75 | 71 |
| 2025 | 67 | 47 |
| 2026 | 20 | 31 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Simultaneous heating and chilling heat pump system11 Aug 2026US 12,704,298 B2Ace Machine Design Inc.
- Electric vehicle heat exchanger deicing system16 Jun 2026US 12,656,034 B2Fca US LLC
- Heat pump apparatus9 Jun 2026US 12,650,251 B2Daikin Industries, Ltd.
- Axial three-way modulating valve26 May 2026US 12,638,089 B2Mueller Refrigeration, LLC
- Transport refrigeration system with a thermal management system12 May 2026US 12,623,512 B2Carrier Corporation
- Control method and system for heat exchange unit17 Sep 2026US 2026/0276246 A1Contemporary Amperex Technology Co., Limited
- Heat pump with pumped refrigerant remote condenser13 Aug 2026US 2026/0235332 A1VERTIV INTERNATIONAL GmbH
- Bearing system for hvac&r system6 Aug 2026US 2026/0227102 A1Tyco Fire & Security GmbH
- Liquefied gas supercooling system using mixed refrigerant30 Jul 2026US 2026/0218858 A1Hd Korea Shipbuilding & Offshore Engineering Co., Ltd.
- Transcritical Heat Pump System30 Jul 2026US 2026/0218957 A1Nik Systems Engineering Services Ltd
Most cited
By later US patents
- Heat management system for aircraft140US 4,505,124 AThe United States of America as represented by the Secretary of the Air Force · 1985
- Refrigeration system and method of operating the same137US 6,973,794 B2Hussmann Corporation · 2005
- Desiccant assisted dehumidification and cooling system114US 5,579,647 AEngelhard/ICC · 1996
- Fuzzy logic based controller for cooling and refrigerating systems108US 5,440,891 A1995
- Hybrid heat pump and desiccant space conditioning system and control method96US 5,448,895 AEngelhard/ICC · 1995