F25B 2600/0253
With variable speed
Official title: with variable speed
F25B2600/0253 (With variable speed) appears on 843 US grants and 1,075 published applications in this corpus.
Search patents in F25B- Granted patents
- 843
- Published applications
- 1,075
- Assignees
- 286
- Inventors
- 2,108
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 5 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 7 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 3 |
| 2002 | 9 | 8 |
| 2003 | 6 | 10 |
| 2004 | 20 | 18 |
| 2005 | 14 | 28 |
| 2006 | 4 | 20 |
| 2007 | 9 | 19 |
| 2008 | 10 | 23 |
| 2009 | 11 | 16 |
| 2010 | 16 | 28 |
| 2011 | 18 | 24 |
| 2012 | 12 | 19 |
| 2013 | 14 | 24 |
| 2014 | 19 | 37 |
| 2015 | 14 | 54 |
| 2016 | 21 | 36 |
| 2017 | 46 | 64 |
| 2018 | 49 | 71 |
| 2019 | 58 | 93 |
| 2020 | 80 | 76 |
| 2021 | 73 | 77 |
| 2022 | 71 | 69 |
| 2023 | 64 | 87 |
| 2024 | 70 | 69 |
| 2025 | 45 | 55 |
| 2026 | 29 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Preventing nuisance trips of ground-fault circuit interruptors electrically coupled to climate control systems29 Sep 2026US 12,749,641 B2Trane International Inc.
- CO2 refrigeration system with convertible compressors25 Aug 2026US 12,716,621 B2Hill Phoenix, Inc.
- Cold storage systems25 Aug 2026US 12,716,639 B2Trane Technologies Life Sciences LLC
- Heat pump system4 Aug 2026US 12,698,926 B2Denso Corporation
- Cooling mechanism4 Aug 2026US 12,698,931 B2Disco Corporation
- System and method for heating and cooling24 Sep 2026US 2026/0287196 A1Daikin Industries, Ltd.
- Air conditioner for vehicle10 Sep 2026US 2026/0264474 A1Sanden Corporation
- Dishwasher and method for controlling the same27 Aug 2026US 2026/0248347 A1LG Electronics Inc.
- Compressor arrangement for hvac&r system27 Aug 2026US 2026/0251357 A1Tyco Fire & Security GmbH
- Ac motor control device and air conditioning device27 Aug 2026US 2026/0254387 A1Mitsubishi Electric Corporation
Most cited
By later US patents
- Variable speed drive chiller system167US 6,434,960 B1Carrier Corporation · 2002
- Method for operating variable speed heat pumps and air conditioners156US 4,873,649 AHoneywell Inc. · 1989
- Humidity control for variable speed air conditioner140US 5,062,276 AElectric Power Research Institute, Inc. · 1991
- Heat pump air conditioning system132US 4,420,947 AMitsubishi Denki Kabushiki Kaisha · 1983
- Energy-efficient refrigerator control system128US 5,711,159 AGeneral Electric Company · 1998