F05D 2260/20
Heat transfer
Official title: Heat transfer, e.g. cooling
F05D2260/20 (Heat transfer) appears on 7,530 US grants and 8,068 published applications in this corpus.
Search patents in F05D- Granted patents
- 7,530
- Published applications
- 8,068
- Assignees
- 690
- Inventors
- 9,283
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 7 | 0 |
| 1983 | 8 | 0 |
| 1984 | 11 | 0 |
| 1985 | 15 | 0 |
| 1986 | 12 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 8 | 0 |
| 1990 | 13 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 30 | 0 |
| 1994 | 28 | 0 |
| 1995 | 43 | 0 |
| 1996 | 38 | 0 |
| 1997 | 48 | 0 |
| 1998 | 55 | 0 |
| 1999 | 49 | 0 |
| 2000 | 61 | 0 |
| 2001 | 92 | 26 |
| 2002 | 95 | 67 |
| 2003 | 93 | 77 |
| 2004 | 70 | 97 |
| 2005 | 62 | 122 |
| 2006 | 102 | 110 |
| 2007 | 88 | 131 |
| 2008 | 60 | 148 |
| 2009 | 91 | 146 |
| 2010 | 148 | 205 |
| 2011 | 147 | 163 |
| 2012 | 177 | 188 |
| 2013 | 182 | 244 |
| 2014 | 192 | 263 |
| 2015 | 179 | 340 |
| 2016 | 189 | 684 |
| 2017 | 249 | 716 |
| 2018 | 466 | 673 |
| 2019 | 726 | 654 |
| 2020 | 767 | 617 |
| 2021 | 616 | 445 |
| 2022 | 602 | 419 |
| 2023 | 474 | 418 |
| 2024 | 470 | 437 |
| 2025 | 424 | 393 |
| 2026 | 259 | 285 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05D 2260/202By film coolingIndexing code1,775
- F05D 2260/221Improvement of heat transferIndexing code1,704
- F05D 2260/201By impingement of a fluidIndexing code1,476
- F05D 2260/213By the provision of a heat exchanger within the cooling circuitIndexing code1,345
- F05D 2260/232Characterized by the cooling mediumIndexing code762
- F05D 2260/205Cooling fluid recirculation, i.e. after cooling one or more components is theIndexing code512
- F05D 2260/231Preventing heat transferIndexing code378
- F05D 2260/204By the use of microcircuitsIndexing code358
All 16 subgroupsShow fewer
- F05D 2260/211By intercoolingIndexing code234
- F05D 2260/212By water injectionIndexing code131
- F05D 2260/203By transpiration coolingIndexing code104
- F05D 2260/208Using heat pipesIndexing code100
- F05D 2260/207Using a phase changing massIndexing code82
- F05D 2260/209Using vortex tubesIndexing code38
- F05D 2260/234Of the generator by compressor inlet airIndexing code18
- F05D 2260/24For draft enhancement in chimneys, using solar or other heat sourcesIndexing code3
Recent patents
- Turbine engine with a blade assembly having a set of cooling conduits6 Oct 2026US 12,753,696 B2General Electric Company
- Turbine engine vane baffle6 Oct 2026US 12,753,698 B1Rtx Corporation
- Airfoil having flex elements with compliance structure6 Oct 2026US 12,753,699 B1GE Vernova Infrastructure Technology LLC
- Dilute combustion of hydrogen in retrofitted gas turbine engines6 Oct 2026US 12,753,722 B2University of Florida Research Foundation, Inc.
- Air system for aircraft propulsion system electric machine29 Sep 2026US 12,747,026 B2Rtx Corporation
- Turbine engine component with a cooling aperture8 Oct 2026US 2026/0309034 A1
- Turbine engine having an airfoil with a set of cooling holes8 Oct 2026US 2026/0309035 A1
- Turbine engine component with a cooling aperture8 Oct 2026US 2026/0309042 A1General Electric Company
- Gas turbine engine with improved heat management8 Oct 2026US 2026/0309080 A1ROLLS-ROYCE plc
- Gas turbine engine having cooling systems8 Oct 2026US 2026/0309082 A1General Electric Company
Most cited
By later US patents
- Heat pipe cooling for turbine stators381US 5,975,841 AThermal Corp. · 1999
- Power plant utilizing compressed air energy storage and saturation333US 5,491,969 AElectric Power Research Institute, Inc. · 1996
- Film cooling hole for turbine airfoil313US 7,997,868 B1Florida Turbine Technologies, Inc. · 2011
- Compressed air energy storage method and system274US 5,537,822 AThe Israel Electric Corporation Ltd. · 1996
- Turbine chilling for oil field power generation244US 9,995,218 B2U.S. Well Services, LLC · 2018