F05D 2270/11
To prolong engine life
Official title: to prolong engine life
F05D2270/11 (To prolong engine life) appears on 452 US grants and 534 published applications in this corpus.
Search patents in F05D- Granted patents
- 452
- Published applications
- 534
- Assignees
- 110
- Inventors
- 1,209
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 7 |
| 2003 | 5 | 4 |
| 2004 | 7 | 14 |
| 2005 | 6 | 13 |
| 2006 | 10 | 12 |
| 2007 | 9 | 16 |
| 2008 | 8 | 14 |
| 2009 | 8 | 13 |
| 2010 | 9 | 11 |
| 2011 | 8 | 12 |
| 2012 | 9 | 15 |
| 2013 | 12 | 11 |
| 2014 | 14 | 14 |
| 2015 | 9 | 24 |
| 2016 | 10 | 32 |
| 2017 | 20 | 42 |
| 2018 | 21 | 57 |
| 2019 | 42 | 42 |
| 2020 | 51 | 51 |
| 2021 | 39 | 23 |
| 2022 | 34 | 28 |
| 2023 | 33 | 29 |
| 2024 | 24 | 20 |
| 2025 | 28 | 19 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aircraft engine19 May 2026US 12,631,147 B2ROLLS-ROYCE plc
- Engine system and method of operating the same14 Apr 2026US 12,601,303 B2ROLLS-ROYCE plc
- Systems and methods for engine wear reduction7 Apr 2026US 12,595,767 B2General Electric Company
- Compliant shroud designs with variable stiffness17 Mar 2026US 12,577,882 B2General Electric Company
- White light interferometer for measuring radial growth in components experiencing rotating stresses27 Jan 2026US 12,535,312 B2Rtx Corporation
- Aircraft engine27 Aug 2026US 2026/0251093 A1ROLLS-ROYCE plc
- Anti-icing device, and compressor and gas turbine including same2 Jul 2026US 2026/0185483 A1Doosan Enerbility Co., Ltd.
- Engine wash time estimation18 Jun 2026US 2026/0167354 A1General Electric Company
- Power converter topology and control scheme for mitigating thermal bowing in gas turbine engines11 Jun 2026US 2026/0160187 A1General Electric Company
- Turbofan engine including a fan actuation system4 Jun 2026US 2026/0153034 A1General Electric Company
Most cited
By later US patents
- Fan with collapsible blades, redundant fan system, and related method271US 6,860,713 B2Nidec Corporation · 2005
- Methods and systems for mitigating distortion of gas turbine shaft72US 8,820,046 B2General Electric Company · 2014
- Method of operating a gas turbine engine63US 7,926,287 B2Pratt & Whitney Canada Corp. · 2011
- Fuel trim method for a multiple chamber gas turbine combustion system58US 5,319,931 AGeneral Electric Company · 1994
- Bowed rotor prevention system58US 9,664,070 B1United Technologies Corporation · 2017