F05D 2250/231
Cylindrical
Official title: cylindrical
F05D2250/231 (Cylindrical) appears on 201 US grants and 211 published applications in this corpus.
Search patents in F05D- Granted patents
- 201
- Published applications
- 211
- Assignees
- 83
- Inventors
- 555
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 2 |
| 2003 | 3 | 3 |
| 2004 | 3 | 1 |
| 2005 | 0 | 2 |
| 2006 | 3 | 6 |
| 2007 | 2 | 3 |
| 2008 | 2 | 6 |
| 2009 | 0 | 6 |
| 2010 | 2 | 9 |
| 2011 | 2 | 3 |
| 2012 | 9 | 7 |
| 2013 | 3 | 7 |
| 2014 | 5 | 5 |
| 2015 | 5 | 7 |
| 2016 | 9 | 7 |
| 2017 | 6 | 19 |
| 2018 | 9 | 13 |
| 2019 | 12 | 15 |
| 2020 | 15 | 15 |
| 2021 | 18 | 20 |
| 2022 | 19 | 17 |
| 2023 | 19 | 9 |
| 2024 | 13 | 12 |
| 2025 | 14 | 11 |
| 2026 | 8 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Airfoil, turbine blade including the airfoil, and gas turbine including the turbine blade11 Aug 2026US 12,704,070 B2Doosan Enerbility Co., Ltd.
- Coating system and method for maintenance thereof16 Jun 2026US 12,655,066 B2ROLLS-ROYCE plc
- Turbine component having pin-fin cooling structure, and gas turbine including same16 Jun 2026US 12,655,768 B2Doosan Enerbility Co., Ltd.
- Bladed assembly with inter-platform connection by friction member19 May 2026US 12,631,117 B2Safran Aircraft Engines
- Variable area nozzle for an aircraft engine5 May 2026US 12,618,380 B2Rtx Corporation
- Turbine or compressor stage assembly13 Aug 2026US 2026/0235034 A1
- Rocket solid propellant grain25 Jun 2026US 2026/0176212 A1Siec Badawcza Lukasiewicz - Instytut Lotnictwa
- Turbine Blade11 Jun 2026US 2026/0160169 A1Siec Badawcza Lukasiewicz - Instytut Lotnictwa
- Airfoil, turbine blade including the airfoil, and gas turbine including the turbine blade30 Apr 2026US 2026/0117660 A1Doosan Enerbility Co., Ltd.
- Airfoil for an engine turbine16 Apr 2026US 2026/0103986 A1Industria De Turbo Propulsores, S.A.U.
Most cited
By later US patents
- Gas turbine combustor including a diffusion nozzle assembly with a double cylindrical structure70US 5,450,725 AKabushiki Kaisha Toshiba · 1995
- Diffusion-cooled blade tip cap67US 4,893,987 AGeneral Electric Company · 1990
- Cooling arrangement for gas-turbine components56US 6,261,053 B1Asea Brown Boveri AG · 2001
- Vortex cooling of turbine blades53US 6,981,846 B2Florida Turbine Technologies, Inc. · 2006
- Repair method for a gas turbine47US 6,546,627 B1Hitachi, Ltd. · 2003