F04D 29/54
Fluid-guiding means
Official title: Fluid-guiding means, e.g. diffusers
F04D29/54 (Fluid-guiding means) appears on 2,815 US grants and 3,102 published applications in this corpus.
Search patents in F04D- Granted patents
- 2,815
- Published applications
- 3,102
- Assignees
- 737
- Inventors
- 5,265
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 10 | 0 |
| 1978 | 6 | 0 |
| 1979 | 10 | 0 |
| 1980 | 15 | 0 |
| 1981 | 4 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 7 | 0 |
| 1985 | 12 | 0 |
| 1986 | 10 | 0 |
| 1987 | 11 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 13 | 0 |
| 1993 | 18 | 0 |
| 1994 | 18 | 0 |
| 1995 | 13 | 0 |
| 1996 | 16 | 0 |
| 1997 | 21 | 0 |
| 1998 | 17 | 0 |
| 1999 | 7 | 0 |
| 2000 | 18 | 0 |
| 2001 | 17 | 2 |
| 2002 | 33 | 23 |
| 2003 | 37 | 33 |
| 2004 | 25 | 53 |
| 2005 | 23 | 66 |
| 2006 | 53 | 69 |
| 2007 | 38 | 88 |
| 2008 | 35 | 84 |
| 2009 | 39 | 67 |
| 2010 | 58 | 86 |
| 2011 | 54 | 84 |
| 2012 | 84 | 97 |
| 2013 | 61 | 118 |
| 2014 | 73 | 123 |
| 2015 | 69 | 148 |
| 2016 | 89 | 262 |
| 2017 | 129 | 271 |
| 2018 | 197 | 316 |
| 2019 | 310 | 186 |
| 2020 | 291 | 193 |
| 2021 | 164 | 129 |
| 2022 | 167 | 113 |
| 2023 | 139 | 151 |
| 2024 | 159 | 120 |
| 2025 | 123 | 111 |
| 2026 | 56 | 109 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Bearing for turbomachine variable pitch stator vane pivot, stator vane comprising such a bearing and turbomachine comprising such stator vanes6 Oct 2026US 12,753,705 B2Safran Aircraft Engines
- Vertical turbine pump and method for producing an elbow housing and/or a lantern housing of a vertical turbine pump6 Oct 2026US 12,753,766 B2Wilo SE
- Blowing device and blowing device operating method29 Sep 2026US 12,747,738 B2Samsung Electronics Co., Ltd.
- Variable vane system for aircraft powerplant29 Sep 2026US 12,747,739 B1Rtx Corporation
- Compressor shroud with swept grooves22 Sep 2026US 12,742,459 B2Pratt & Whitney Canada Corp.
- Evaporator for ambient water bodies, and related system and method8 Oct 2026US 2026/0306964 A1Resource West, Inc.
- Variable-pitch vane for an unducted aeronautical thruster1 Oct 2026US 2026/0298260 A1Safran Aircraft Engines
- Flow deflector having channels with double ejection angles1 Oct 2026US 2026/0298265 A1Safran Aircraft Engines
- Vacuum pump and stator disc24 Sep 2026US 2026/0286966 A1Edwards Japan Limited
- Blower24 Sep 2026US 2026/0286981 A1
Most cited
By later US patents
- Heart assist device with expandable impeller pump411US 7,841,976 B2The Penn State Research Foundation · 2010
- Turbofan gas turbine engine242US 4,827,712 AROLLS-ROYCE plc · 1989
- Variable geometry guide vane for a gas turbine engine199US 7,632,064 B2United Technologies Corporation · 2009
- Pump having impeller rotational about convoluted stationary member148US 5,040,944 A1991
- Leaned and swept fan outlet guide vanes140US 6,195,983 B1General Electric Company · 2001