F25B 49/022
Compressor control arrangements
Official title: {Compressor control arrangements}
F25B49/022 (Compressor control arrangements) appears on 1,762 US grants and 1,841 published applications in this corpus.
Search patents in F25B- Granted patents
- 1,762
- Published applications
- 1,841
- Assignees
- 498
- Inventors
- 3,604
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 8 | 0 |
| 1979 | 8 | 0 |
| 1980 | 8 | 0 |
| 1981 | 14 | 0 |
| 1982 | 10 | 0 |
| 1983 | 8 | 0 |
| 1984 | 15 | 0 |
| 1985 | 19 | 0 |
| 1986 | 9 | 0 |
| 1987 | 10 | 0 |
| 1988 | 9 | 0 |
| 1989 | 19 | 0 |
| 1990 | 18 | 0 |
| 1991 | 27 | 0 |
| 1992 | 25 | 0 |
| 1993 | 17 | 0 |
| 1994 | 19 | 0 |
| 1995 | 7 | 0 |
| 1996 | 10 | 0 |
| 1997 | 7 | 0 |
| 1998 | 18 | 0 |
| 1999 | 25 | 0 |
| 2000 | 29 | 0 |
| 2001 | 36 | 15 |
| 2002 | 44 | 34 |
| 2003 | 39 | 43 |
| 2004 | 46 | 59 |
| 2005 | 28 | 33 |
| 2006 | 22 | 27 |
| 2007 | 19 | 32 |
| 2008 | 11 | 28 |
| 2009 | 13 | 21 |
| 2010 | 14 | 31 |
| 2011 | 15 | 30 |
| 2012 | 15 | 27 |
| 2013 | 20 | 53 |
| 2014 | 19 | 68 |
| 2015 | 32 | 125 |
| 2016 | 52 | 85 |
| 2017 | 93 | 111 |
| 2018 | 100 | 127 |
| 2019 | 116 | 124 |
| 2020 | 128 | 147 |
| 2021 | 109 | 129 |
| 2022 | 103 | 117 |
| 2023 | 117 | 103 |
| 2024 | 99 | 96 |
| 2025 | 74 | 90 |
| 2026 | 55 | 86 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Evaporator-condenser system without external heating and cooling29 Sep 2026US 12,747,896 B2Illuminated Extractors, Ltd.
- Control method, apparatus, and device for compressor, storage medium, and refrigeration system22 Sep 2026US 12,742,578 B2Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Control method and device suitable for air conditioner in high drop mode15 Sep 2026US 12,736,247 B2Carrier Corporation
- Refrigeration system with heat pump compression15 Sep 2026US 12,736,260 B2Toromont Industries Limited
- Multi-type air-conditioning device8 Oct 2026US 2026/0309383 A1
- Refrigeration appliance and method for operating a refrigeration appliance8 Oct 2026US 2026/0309384 A1BSH Hausgeräte GmbH
- Cooling System and Respective Operation1 Oct 2026US 2026/0298518 A1
- Methods and systems for controlling a compressor cooling system24 Sep 2026US 2026/0287224 A1Copeland Corporation
- Methods and systems for controlling a compressor cooling system24 Sep 2026US 2026/0287233 A1Copeland Corporation
Most cited
By later US patents
- Control for commercial refrigeration system204US 5,586,444 ATyler Refrigeration Corporation · 1996
- Adaptive control for a refrigeration system using pulse width modulated duty cycle scroll compressor194US 6,047,557 ACopeland Corporation · 2000
- Capacity modulated scroll machine156US 5,741,120 ACopeland Corporation · 1998
- Heating and cooling system with variable capacity compressor154US 5,628,201 ACopeland Corporation · 1997
- Compressor149US 5,857,348 AMultistack International Limited · 1999