F04D 29/5826
Cooling at least part of the working fluid in a heat exchanger
Official title: {Cooling at least part of the working fluid in a heat exchanger}
F04D29/5826 (Cooling at least part of the working fluid in a heat exchanger) appears on 326 US grants and 373 published applications in this corpus.
Search patents in F04D- Granted patents
- 326
- Published applications
- 373
- Assignees
- 198
- Inventors
- 853
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 2 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 8 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 0 |
| 2002 | 5 | 3 |
| 2003 | 4 | 3 |
| 2004 | 4 | 7 |
| 2005 | 4 | 4 |
| 2006 | 1 | 4 |
| 2007 | 3 | 3 |
| 2008 | 1 | 7 |
| 2009 | 1 | 8 |
| 2010 | 3 | 4 |
| 2011 | 3 | 7 |
| 2012 | 6 | 12 |
| 2013 | 6 | 18 |
| 2014 | 6 | 11 |
| 2015 | 11 | 22 |
| 2016 | 10 | 31 |
| 2017 | 13 | 34 |
| 2018 | 17 | 31 |
| 2019 | 30 | 34 |
| 2020 | 38 | 20 |
| 2021 | 22 | 24 |
| 2022 | 21 | 18 |
| 2023 | 17 | 17 |
| 2024 | 11 | 14 |
| 2025 | 19 | 22 |
| 2026 | 8 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Additively manufactured heat exchanger and diffuser pipe coupled to a compressor stage6 Oct 2026US 12,752,921 B2Hamilton Sundstrand Corporation
- Throttle valve for coolant circulation system18 Aug 2026US 12,710,056 B2Ingersoll-Rand Industrial U.S., Inc.
- Cooling circuits for compressors and compressors including same11 Aug 2026US 12,704,132 B2Copeland Corporation
- Gas supply apparatus28 Jul 2026US 12,692,878 B2Robert Bosch GmbH
- Impeller back-face cooling aperture7 Jul 2026US 12,674,472 B1Pratt & Whitney Canada Corp.
- Method for assembling compressor module and compressor module20 Aug 2026US 2026/0243276 A1Mitsubishi Heavy Industries Compressor Corporation
- Multi-stage compressor system with anti-surge arrangement, and method23 Jul 2026US 2026/0210371 A1Nuovo Pignone Tecnologie Srl
- Cooling circuits for compressors and compressors including same9 Jul 2026US 2026/0194069 A1Copeland Corporation
- Cooling circuits for compressors and compressors including same9 Jul 2026US 2026/0194070 A1Copeland Corporation
- Cooling circuits for compressors and compressors including same9 Jul 2026US 2026/0194071 A1Copeland Corporation
Most cited
By later US patents
- Thermoelectric heat exchanger227US 6,119,463 AAmerigon Incorporated · 2000
- Thermoelectric heat exchanger196US 6,223,539 B1Amerigon Incorporated · 2001
- Thermoelectric heat exchanger177US 6,606,866 B2Amerigon Incorporated · 2003
- Thermoelectric heat exchanger135US 6,907,739 B22005
- Thermoelectric heat exchanger103US 7,178,344 B2Amerigon Incorporated · 2007