F04D 27/0215
Arrangements therefor
Official title: {Arrangements therefor, e.g. bleed or by-pass valves}
F04D27/0215 (Arrangements therefor) appears on 494 US grants and 452 published applications in this corpus.
Search patents in F04D- Granted patents
- 494
- Published applications
- 452
- Assignees
- 197
- Inventors
- 1,012
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 7 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 7 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 5 |
| 2003 | 4 | 6 |
| 2004 | 7 | 5 |
| 2005 | 3 | 8 |
| 2006 | 6 | 5 |
| 2007 | 6 | 7 |
| 2008 | 2 | 12 |
| 2009 | 4 | 13 |
| 2010 | 4 | 10 |
| 2011 | 5 | 16 |
| 2012 | 20 | 10 |
| 2013 | 6 | 26 |
| 2014 | 16 | 24 |
| 2015 | 16 | 20 |
| 2016 | 21 | 29 |
| 2017 | 24 | 40 |
| 2018 | 21 | 28 |
| 2019 | 39 | 33 |
| 2020 | 42 | 41 |
| 2021 | 31 | 25 |
| 2022 | 35 | 19 |
| 2023 | 34 | 29 |
| 2024 | 30 | 15 |
| 2025 | 23 | 15 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Throttle valve for coolant circulation system18 Aug 2026US 12,710,056 B2Ingersoll-Rand Industrial U.S., Inc.
- Aircraft component additively having thermally adaptive material and a thermoelectric junction4 Aug 2026US 12,698,783 B2Hamilton Sundstrand Corporation
- Aero-acoustically dampened bleed valve16 Jun 2026US 12,655,804 B2General Electric Company
- Compressor cooling system for a turbofan engine19 May 2026US 12,631,125 B1Pratt & Whitney Canada Corp.
- Surge control systems and methods for dynamic compressors24 Mar 2026US 12,584,489 B2Copeland Corporation
- Variable bleed valve assemblies8 Oct 2026US 2026/0309077 A1General Electric Company
- Aero-acoustically dampened bleed valve24 Sep 2026US 2026/0286904 A1General Electric Company
- Multi-stage compressor system with anti-surge arrangement, and method23 Jul 2026US 2026/0210371 A1Nuovo Pignone Tecnologie Srl
- Flapper valve for aircraft engine18 Jun 2026US 2026/0168445 A1Pratt & Whitney Canada Corp.
- Bleed valve system for gas turbine engine14 May 2026US 2026/0132746 A1General Electric Company
Most cited
By later US patents
- Gas turbine engine variable bleed pivotal flow splitter132US 5,279,109 AGeneral Electric Company · 1994
- Heat exchange system100US 4,546,605 AUnited Technologies Corporation · 1985
- Active clearance control system for a turbomachine92US 4,329,114 AThe United States of America as represented by the Administrator of the National Aeronautics and Space Administration · 1982
- Surge prevention control system for dynamic compressors87US 5,798,941 AWoodward Governor Company · 1998
- Combined surge bleed and dust removal system for a fan-jet engine83US 4,463,552 AUnited Technologies Corporation · 1984