F25B 49/027
Condenser control arrangements
Official title: {Condenser control arrangements}
F25B49/027 (Condenser control arrangements) appears on 555 US grants and 458 published applications in this corpus.
Search patents in F25B- Granted patents
- 555
- Published applications
- 458
- Assignees
- 226
- Inventors
- 1,127
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 8 | 0 |
| 1982 | 9 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 7 | 0 |
| 1991 | 8 | 0 |
| 1992 | 10 | 0 |
| 1993 | 12 | 0 |
| 1994 | 3 | 0 |
| 1995 | 8 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 11 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 13 | 2 |
| 2002 | 13 | 7 |
| 2003 | 12 | 14 |
| 2004 | 9 | 12 |
| 2005 | 13 | 12 |
| 2006 | 4 | 16 |
| 2007 | 8 | 9 |
| 2008 | 5 | 10 |
| 2009 | 2 | 12 |
| 2010 | 6 | 17 |
| 2011 | 10 | 24 |
| 2012 | 5 | 13 |
| 2013 | 10 | 22 |
| 2014 | 8 | 18 |
| 2015 | 13 | 19 |
| 2016 | 17 | 21 |
| 2017 | 21 | 28 |
| 2018 | 30 | 28 |
| 2019 | 19 | 39 |
| 2020 | 36 | 31 |
| 2021 | 23 | 25 |
| 2022 | 26 | 23 |
| 2023 | 27 | 20 |
| 2024 | 21 | 17 |
| 2025 | 18 | 14 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for a refrigeration system with indirect evaporative heat exchanger18 Aug 2026US 12,710,208 B2Effecterra, Inc.
- Ice maker with pressure transducers12 May 2026US 12,624,876 B2True Manufacturing Co., Inc.
- Refrigerating system and charging system21 Apr 2026US 12,606,041 B2Huawei Digital Power Technologies Co., Ltd.
- Refrigeration device21 Apr 2026US 12,607,387 B2Panasonic Intellectual Property Management Co., Ltd.
- Reduction of power consumption in transport refrigeration unit31 Mar 2026US 12,590,744 B2Carrier Corporation
- Apparatus, System and Method for Monitoring Air Conditioning Condenser Cleanliness6 Aug 2026US 2026/0227110 A1Westermeyer Industries Inc.
- System and Method for Controlling Head Pressure in a Refrigeration System16 Jul 2026US 2026/0202111 A1Lennox Industries Inc.
- Method and system for controlling a condensing unit4 Jun 2026US 2026/0153277 A1KE2 Therm Solutions, Inc.
- Ice maker28 May 2026US 2026/0146773 A1True Manufacturing Co., Inc.
- Condenser clogging detection method and system26 Mar 2026US 2026/0085866 A1VERTIV INTERNATIONAL GmbH
Most cited
By later US patents
- Fan motor on/off control system for a refrigeration appliance176US 5,918,474 AWhirlpool Corporation · 1999
- Air conditioning system with variable condenser reheat for enhanced dehumidification125US 6,826,921 B1Lennox Industries Inc. · 2004
- Method and apparatus for controlling capacity of a multiple-stage cooling system111US 5,265,434 A1993
- Near optimization of cooling tower condenser water103US 5,600,960 AAmerican Standard Inc. · 1997
- Blocked fan detection system for heat pump96US 5,440,890 ACopeland Corporation · 1995