F24F 11/86
By controlling compressors within refrigeration or heat pump circuits
Official title: by controlling compressors within refrigeration or heat pump circuits
F24F11/86 (By controlling compressors within refrigeration or heat pump circuits) appears on 741 US grants and 792 published applications in this corpus.
Search patents in F24F- Granted patents
- 741
- Published applications
- 792
- Assignees
- 207
- Inventors
- 1,885
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 7 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 9 | 0 |
| 1989 | 9 | 0 |
| 1990 | 9 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 12 | 0 |
| 1994 | 12 | 0 |
| 1995 | 14 | 0 |
| 1996 | 14 | 0 |
| 1997 | 10 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 3 |
| 2002 | 5 | 0 |
| 2003 | 1 | 2 |
| 2004 | 5 | 12 |
| 2005 | 3 | 10 |
| 2006 | 6 | 15 |
| 2007 | 6 | 16 |
| 2008 | 7 | 16 |
| 2009 | 7 | 13 |
| 2010 | 9 | 24 |
| 2011 | 9 | 14 |
| 2012 | 8 | 26 |
| 2013 | 5 | 16 |
| 2014 | 12 | 17 |
| 2015 | 15 | 35 |
| 2016 | 12 | 28 |
| 2017 | 26 | 45 |
| 2018 | 32 | 28 |
| 2019 | 36 | 51 |
| 2020 | 63 | 59 |
| 2021 | 49 | 72 |
| 2022 | 53 | 62 |
| 2023 | 50 | 66 |
| 2024 | 62 | 62 |
| 2025 | 45 | 54 |
| 2026 | 26 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Refrigerant leakage detection method and device, air conditioner and storage medium29 Sep 2026US 12,747,882 B2Gd Midea Air-Conditioning Equipment Co., Ltd.
- HVAC system using reheat from alternative heat source15 Sep 2026US 12,736,236 B2Tyco Fire & Security GmbH
- Air conditioner having power-saving function and air conditioner control method15 Sep 2026US 12,736,241 B2Samsung Electronics Co., Ltd.
- Control method and device suitable for air conditioner in high drop mode15 Sep 2026US 12,736,247 B2Carrier Corporation
- Air conditioning system, air conditioning apparatus, and control method15 Sep 2026US 12,736,249 B2Fujitsu General Limited
- Systems and methods for controlling capacity of a compressor8 Oct 2026US 2026/0309355 A1Tyco Fire & Security GmbH
- Refrigeration Circuit Device and Heat Pump8 Oct 2026US 2026/0309356 A1Viessmann Holding International GmbH
- Air conditioner and method for controlling air conditioner10 Sep 2026US 2026/0266497 A1Samsung Electronics Co., Ltd.
- Compressor modulation in non-communicating mode10 Sep 2026US 2026/0266498 A1Lennox Industries Inc.
- Air conditioner3 Sep 2026US 2026/0257535 A1Sanden Corporation
Most cited
By later US patents
- System and method of controlling an HVAC system560US 7,130,719 B2Robertshaw Controls Company · 2006
- Adaptable control of HVAC systems341US 5,170,935 AMassachusetts Institute of Technology · 1992
- System and method of controlling delivery and/or usage of a commodity267US 7,949,615 B2Robertshaw Controls Company · 2011
- Control system and methods for a multiparameter electronically commutated motor250US 5,592,058 AGeneral Electric Company · 1997
- Air conditioning method in machine room having forced air-cooling equipment housed therein247US 5,718,628 ANippon Telegraph and Telephone Corporation · 1998