F25B 2500/28
Means for preventing liquid refrigerant entering into the compressor
F25B2500/28 (Means for preventing liquid refrigerant entering into the compressor) appears on 152 US grants and 184 published applications in this corpus.
Search patents in F25B- Granted patents
- 152
- Published applications
- 184
- Assignees
- 90
- Inventors
- 400
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 2 |
| 2003 | 4 | 3 |
| 2004 | 4 | 8 |
| 2005 | 4 | 4 |
| 2006 | 5 | 6 |
| 2007 | 2 | 5 |
| 2008 | 2 | 3 |
| 2009 | 3 | 7 |
| 2010 | 1 | 4 |
| 2011 | 3 | 3 |
| 2012 | 2 | 8 |
| 2013 | 3 | 6 |
| 2014 | 4 | 8 |
| 2015 | 8 | 4 |
| 2016 | 3 | 8 |
| 2017 | 8 | 14 |
| 2018 | 7 | 14 |
| 2019 | 14 | 16 |
| 2020 | 17 | 14 |
| 2021 | 10 | 8 |
| 2022 | 10 | 7 |
| 2023 | 13 | 15 |
| 2024 | 8 | 8 |
| 2025 | 8 | 6 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas-liquid separation device and thermal management system11 Aug 2026US 12,704,303 B2Zhejiang Sanhua Intelligent Controls Co., Ltd.
- System and method of monitor quality of a refrigerant in a cooling system7 Apr 2026US 12,595,947 B2Fca US LLC
- Measurement apparatus and refrigeration system comprising same27 Jan 2026US 12,535,252 B2Tyco Fire & Security GmbH
- Air-conditioning apparatus30 Dec 2025US 12,510,276 B2Mitsubishi Electric Corporation
- Dual mass cooling precision system9 Dec 2025US 12,492,846 B2STULZ Air Technology Systems, Inc.
- 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.
- Direct expansion evaporator with vapor ejector capacity boost11 Jun 2026US 2026/0160460 A1
- Refrigeration cycle apparatus11 Jun 2026US 2026/0160462 A1Mitsubishi Electric Corporation
- Heat exchange system and heat exchange method21 Aug 2025US 2025/0264252 A1Carrier Corporation
- System and method of monitor quality of a refrigerant in a cooling system21 Aug 2025US 2025/0264256 A1Fca US LLC
Most cited
By later US patents
- Rate of change detector for refrigerant floodback97US 6,578,373 B12003
- Evaporator with mist eliminator42US 6,532,763 B1Carrier Corporation · 2003
- Compressor protection from liquid hazards42US 6,886,354 B2Carrier Corporation · 2005
- Variable speed compressor protection system and method34US 8,459,053 B2Emerson Climate Technologies, Inc. · 2013
- Compressor with flooded start control30US 9,194,393 B2Emerson Climate Technologies, Inc. · 2015