F04D 29/682
By fluid extraction
Official title: {by fluid extraction}
F04D29/682 (By fluid extraction) appears on 153 US grants and 166 published applications in this corpus.
Search patents in F04D- Granted patents
- 153
- Published applications
- 166
- Assignees
- 91
- Inventors
- 328
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 5 |
| 2005 | 2 | 10 |
| 2006 | 5 | 6 |
| 2007 | 3 | 5 |
| 2008 | 3 | 3 |
| 2009 | 5 | 8 |
| 2010 | 3 | 6 |
| 2011 | 2 | 7 |
| 2012 | 6 | 6 |
| 2013 | 4 | 10 |
| 2014 | 5 | 8 |
| 2015 | 4 | 4 |
| 2016 | 5 | 7 |
| 2017 | 10 | 11 |
| 2018 | 4 | 6 |
| 2019 | 8 | 6 |
| 2020 | 7 | 12 |
| 2021 | 7 | 12 |
| 2022 | 19 | 10 |
| 2023 | 6 | 6 |
| 2024 | 11 | 8 |
| 2025 | 6 | 5 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Axial turbomachine compressor with controlled recirculation between the inner shroud and the rotor23 Dec 2025US 12,504,020 B2Safran Aero Boosters SA
- Short impeller for a turbomachine8 Jul 2025US 12,352,290 B2OneSubsea IP UK Limited
- Variable geometry supersonic compressor24 Jun 2025US 12,338,829 B2Next Gen Compression LLC
- Aircraft propulsion system with multi-direction bleed valve6 May 2025US 12,292,006 B2Rtx Corporation
- Stabilizer of a compressor18 Feb 2025US 12,228,143 B2Accelleron Switzerland Ltd.
- Recirculator casing treatment for gas turbine engines26 Mar 2026US 2026/0085617 A1Pratt & Whitney Canada Corp.
- Diffuser-turbine flow network15 Jan 2026US 2026/0015945 A1Rtx Corporation
- Axial fan31 Jul 2025US 2025/0243880 A1Daikin Industries, Ltd.
- Airflow device19 Jun 2025US 2025/0198424 A1Nanjing Chevron Industry Co., Ltd.
- Axial turbomachine compressor with controlled recirculation between the inner shroud and the rotor5 Jun 2025US 2025/0180033 A1Safran Aero Boosters SA
Most cited
By later US patents
- Low noise permeable airfoil71US 6,139,259 AGeneral Electric Company · 2000
- Method and apparatus for producing fluid pressure and controlling boundary layer54US 5,152,661 A1992
- Supersonic compressors46US 3,993,414 AOffice National d'Etudes et de Recherches Aerospatiales (O.N.E.R.A.) · 1976
- Compressor boundary layer bleeding system44US 4,479,755 AA/S Kongsberg Vapenfabrikk · 1984
- Centrifugal air flow control35US 6,203,269 B1United Technologies Corporation · 2001