F25B 2700/1931
Discharge pressures
F25B2700/1931 (Discharge pressures) appears on 876 US grants and 1,139 published applications in this corpus.
Search patents in F25B- Granted patents
- 876
- Published applications
- 1,139
- Assignees
- 228
- Inventors
- 1,851
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 0 |
| 2002 | 8 | 12 |
| 2003 | 11 | 15 |
| 2004 | 20 | 37 |
| 2005 | 20 | 38 |
| 2006 | 23 | 40 |
| 2007 | 20 | 15 |
| 2008 | 14 | 26 |
| 2009 | 13 | 28 |
| 2010 | 13 | 31 |
| 2011 | 22 | 30 |
| 2012 | 19 | 25 |
| 2013 | 10 | 20 |
| 2014 | 7 | 44 |
| 2015 | 27 | 73 |
| 2016 | 26 | 48 |
| 2017 | 60 | 60 |
| 2018 | 71 | 70 |
| 2019 | 62 | 79 |
| 2020 | 70 | 78 |
| 2021 | 62 | 66 |
| 2022 | 52 | 80 |
| 2023 | 52 | 71 |
| 2024 | 68 | 71 |
| 2025 | 62 | 52 |
| 2026 | 31 | 30 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Two-stage compression centrifugal unit and middle air supplementing control method therefor, and heating and ventilation device20 Aug 2026US 2026/0243470 A1Chongqing Midea General Refrigeration Equipment Co., Ltd.
- Hvacr system with flash tank having dynamic receiver functions20 Aug 2026US 2026/0243482 A1Trane Air Conditioning Systems (China) Co., Ltd.
- Refrigerator20 Aug 2026US 2026/0243485 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Monitoring refrigerant in a refrigeration system192US 7,752,853 B2Emerson Retail Services, Inc. · 2010
- Compressor diagnostic system172US 6,615,594 B2Copeland Corporation · 2003
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- Apparatus and method for detecting faults and providing diagnostics in vapor compression cycle equipment156US 6,658,373 B2Field Diagnostic Services, Inc. · 2003
- Compressor diagnostic and recording system148US 6,406,265 B1Scroll Technologies · 2002