F05D 2250/33
Symmetrical
Official title: symmetrical
F05D2250/33 (Symmetrical) appears on 40 US grants and 31 published applications in this corpus.
Search patents in F05D- Granted patents
- 40
- Published applications
- 31
- Assignees
- 30
- Inventors
- 82
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 2 |
| 2009 | 1 | 1 |
| 2010 | 2 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 4 |
| 2024 | 3 | 2 |
| 2025 | 4 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Localized thickening ply reinforcement within ceramic matrix composite airfoil cavity21 Oct 2025US 12,448,896 B2Rtx Corporation
- Twin pump unit casing having motor mounted touchscreens29 Jul 2025US 12,372,091 B2S. A. Armstrong Limited
- Exhaust nozzle3 Jun 2025US 12,320,285 B2ROLLS-ROYCE plc
- Guide vanes for fully reversible turbomachinery27 May 2025US 12,312,978 B2Howden Axial Fans Aps
- Fluid turbine with parachute-like catchers29 Oct 2024US 12,129,823 B2
- Turbine airfoil and gas turbine including the same25 Dec 2025US 2025/0389195 A1Doosan Enerbility Co., Ltd.
- Twin Pump Unit Casing Having Motor Mounted Touchscreens23 Oct 2025US 2025/0327456 A1S. A. Armstrong Limited
- Localized thickening ply reinforcement within ceramic matrix composite airfoil cavity27 Feb 2025US 2025/0067184 A1Rtx Corporation
- Exhaust nozzle30 Jan 2025US 2025/0035027 A1ROLLS-ROYCE plc
- Dual Body Variable Duty Performance Optimizing Pump Unit11 Jul 2024US 2024/0229800 A1S. A. Armstrong Limited
Most cited
By later US patents
- System for attaching two rotating parts made of materials having different expansion coefficients58US 4,452,038 ASnecma · 1984
- Axi-symmetric mixed compression inlet with variable geometry centerbody42US 6,705,569 B12004
- Cooled exhaust nozzle flaps38US 4,544,098 AUnited Technologies Corporation · 1985
- Axisymmetric vectoring exhaust nozzle thermal shield38US 5,485,959 AGeneral Electric Company · 1996
- Axi-symmetric mixed compression inlet with variable geometry centerbody15US 6,276,632 B12001