F04D 27/023
Details or means for fluid extraction
Official title: {Details or means for fluid extraction}
F04D27/023 (Details or means for fluid extraction) appears on 326 US grants and 277 published applications in this corpus.
Search patents in F04D- Granted patents
- 326
- Published applications
- 277
- Assignees
- 112
- Inventors
- 680
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 0 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 9 | 0 |
| 2001 | 4 | 0 |
| 2002 | 6 | 7 |
| 2003 | 4 | 2 |
| 2004 | 7 | 8 |
| 2005 | 2 | 5 |
| 2006 | 4 | 6 |
| 2007 | 4 | 9 |
| 2008 | 3 | 11 |
| 2009 | 6 | 10 |
| 2010 | 4 | 8 |
| 2011 | 6 | 10 |
| 2012 | 11 | 9 |
| 2013 | 5 | 13 |
| 2014 | 9 | 16 |
| 2015 | 10 | 13 |
| 2016 | 13 | 18 |
| 2017 | 20 | 22 |
| 2018 | 13 | 15 |
| 2019 | 23 | 19 |
| 2020 | 17 | 19 |
| 2021 | 17 | 11 |
| 2022 | 11 | 6 |
| 2023 | 15 | 16 |
| 2024 | 11 | 6 |
| 2025 | 10 | 10 |
| 2026 | 3 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Centrifugal compressor with energy recovery from a recycle line7 Jul 2026US 12,674,460 B2Nuovo Pignone Tecnologie Srl
- Aero-acoustically dampened bleed valve16 Jun 2026US 12,655,804 B2General Electric Company
- Automatic bleed valve3 Feb 2026US 12,540,580 B1Pratt & Whitney Canada Corp.
- Bleed valve assemblies22 Jul 2025US 12,366,202 B2General Electric Company
- Self-actuated bleed valves for gas turbine engines27 May 2025US 12,313,011 B2Hamilton Sundstrand Corporation
- Variable bleed valve assemblies8 Oct 2026US 2026/0309077 A1General Electric Company
- Aero-acoustically dampened bleed valve24 Sep 2026US 2026/0286904 A1General Electric Company
- Ported shroud centrifugal compressor6 Aug 2026US 2026/0226917 A1Ohio State Innovation Foundation
- Flapper valve for aircraft engine18 Jun 2026US 2026/0168445 A1Pratt & Whitney Canada Corp.
- Vortex cooled secondary flow for a supercritical carbon dioxide pump11 Jun 2026US 2026/0160268 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
- Cooling system for a gas turbine engine compressor89US 5,297,386 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1994
- Combined surge bleed and dust removal system for a fan-jet engine83US 4,463,552 AUnited Technologies Corporation · 1984