F05D 2260/221
Improvement of heat transfer
F05D2260/221 (Improvement of heat transfer) appears on 1,704 US grants and 1,760 published applications in this corpus.
Search patents in F05D- Granted patents
- 1,704
- Published applications
- 1,760
- Assignees
- 220
- Inventors
- 2,568
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 9 | 0 |
| 1997 | 15 | 0 |
| 1998 | 16 | 0 |
| 1999 | 9 | 0 |
| 2000 | 19 | 0 |
| 2001 | 27 | 3 |
| 2002 | 23 | 16 |
| 2003 | 28 | 23 |
| 2004 | 17 | 27 |
| 2005 | 23 | 45 |
| 2006 | 34 | 44 |
| 2007 | 32 | 39 |
| 2008 | 23 | 42 |
| 2009 | 34 | 49 |
| 2010 | 51 | 70 |
| 2011 | 54 | 49 |
| 2012 | 56 | 35 |
| 2013 | 60 | 55 |
| 2014 | 40 | 59 |
| 2015 | 37 | 77 |
| 2016 | 47 | 139 |
| 2017 | 53 | 166 |
| 2018 | 102 | 129 |
| 2019 | 173 | 155 |
| 2020 | 180 | 164 |
| 2021 | 119 | 92 |
| 2022 | 135 | 71 |
| 2023 | 81 | 58 |
| 2024 | 69 | 55 |
| 2025 | 55 | 55 |
| 2026 | 31 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Turbine engine vane baffle6 Oct 2026US 12,753,698 B1Rtx Corporation
- Turbine engine having a compression section22 Sep 2026US 12,742,419 B1General Electric Company
- Metal coupon with porous stress-relief section and component with same15 Sep 2026US 12,735,986 B2GE Infrastructure Technology LLC
- Tandem seal pump8 Sep 2026US 12,729,692 B2Ceco Environmental IP Inc.
- Turbine blade with boomerang shaped wall cooling passages25 Aug 2026US 12,716,359 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
- Stator blade and gas turbine comprising same24 Sep 2026US 2026/0286854 A1Mitsubishi Heavy Industries, Ltd.
- Blade outer air seal (boas) assembly for a gas turbine engine17 Sep 2026US 2026/0275879 A1Rtx Corporation
- Heat exchanger density ion injection and reclaim system17 Sep 2026US 2026/0275913 A1Rtx Corporation
Most cited
By later US patents
- Method for improving the cooling effectiveness of a gaseous coolant stream, and related articles of manufacture153US 6,234,755 B1General Electric Company · 2001
- Coolable airfoil for a rotary machine152US 4,474,532 AUnited Technologies Corporation · 1984
- Method and apparatus for cooling a wall within a gas turbine engine143US 6,402,470 B1United Technologies Corporation · 2002
- High effectiveness cooled turbine vane or blade129US 6,974,308 B2Honeywell International Inc. · 2005
- Chordally bifurcated turbine blade121US 5,356,265 AGeneral Electric Company · 1994