F25B 31/008
By injecting a liquid
Official title: {by injecting a liquid}
F25B31/008 (By injecting a liquid) appears on 195 US grants and 189 published applications in this corpus.
Search patents in F25B- Granted patents
- 195
- Published applications
- 189
- Assignees
- 90
- Inventors
- 455
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 6 | 0 |
| 2001 | 13 | 2 |
| 2002 | 5 | 5 |
| 2003 | 2 | 3 |
| 2004 | 5 | 2 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 2 | 6 |
| 2008 | 0 | 0 |
| 2009 | 0 | 4 |
| 2010 | 3 | 5 |
| 2011 | 2 | 7 |
| 2012 | 1 | 7 |
| 2013 | 6 | 1 |
| 2014 | 3 | 10 |
| 2015 | 4 | 9 |
| 2016 | 3 | 13 |
| 2017 | 7 | 12 |
| 2018 | 14 | 13 |
| 2019 | 9 | 17 |
| 2020 | 15 | 17 |
| 2021 | 13 | 13 |
| 2022 | 11 | 12 |
| 2023 | 10 | 10 |
| 2024 | 14 | 6 |
| 2025 | 8 | 10 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hermetic motor cooling system18 Aug 2026US 12,712,408 B2Tyco Fire & Security GmbH
- Turbo compressor and turbo chiller comprising same11 Aug 2026US 12,704,133 B2Mitsubishi Heavy Industries Thermal Systems, Ltd.
- Centrifugal compressor with liquid injection23 Jun 2026US 12,663,023 B2Daikin Industries, Ltd.
- Turbo chiller17 Mar 2026US 12,578,130 B2Mitsubishi Heavy Industries Thermal Systems, Ltd.
- Liquid-cooling type double-sided cooler30 Dec 2025US 12,513,868 B2Hyundai Motor Company
- Methods and systems for controlling a compressor cooling system24 Sep 2026US 2026/0287233 A1Copeland Corporation
- Refrigerator20 Aug 2026US 2026/0243485 A1Daikin Industries, Ltd.
- Fluid supply system for bearings of hvac&r system13 Aug 2026US 2026/0235333 A1Tyco Fire & Security GmbH
- Bearing system for hvac&r system6 Aug 2026US 2026/0227102 A1Tyco Fire & Security GmbH
- Turbo compressor and turbo chiller comprising same29 Jan 2026US 2026/0028997 A1Mitsubishi Heavy Industries Thermal Systems, Ltd.
Most cited
By later US patents
- Compressor with liquid injection131US 5,076,067 ACopeland Corporation · 1991
- Compressor system with demand cooling110US 4,974,427 ACopeland Corporation · 1990
- Compression refrigeration machine97US 5,671,607 ASEP Gesellschaft fur technische Studien Entwicklung Planung mbH · 1997
- Scroll compressor with means for end plate bias and cooled gas return to sealed compressor spaces96US 4,216,661 AHitachi, Ltd. · 1980
- Scroll machine having liquid injection controlled by internal valve92US 5,640,854 ACopeland Corporation · 1997