F05D 2220/3215
The last stage of the turbine
Official title: the last stage of the turbine
F05D2220/3215 (The last stage of the turbine) appears on 92 US grants and 118 published applications in this corpus.
Search patents in F05D- Granted patents
- 92
- Published applications
- 118
- Assignees
- 36
- Inventors
- 278
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 3 |
| 2006 | 1 | 2 |
| 2007 | 1 | 2 |
| 2008 | 2 | 1 |
| 2009 | 1 | 3 |
| 2010 | 2 | 1 |
| 2011 | 1 | 4 |
| 2012 | 2 | 4 |
| 2013 | 2 | 5 |
| 2014 | 5 | 4 |
| 2015 | 3 | 6 |
| 2016 | 3 | 10 |
| 2017 | 5 | 9 |
| 2018 | 6 | 7 |
| 2019 | 6 | 9 |
| 2020 | 13 | 14 |
| 2021 | 10 | 5 |
| 2022 | 10 | 7 |
| 2023 | 5 | 5 |
| 2024 | 4 | 5 |
| 2025 | 6 | 5 |
| 2026 | 2 | 6 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Case comprising internal and/or external stiffeners21 Apr 2026US 12,607,134 B2Safran Aircraft Engines
- Gas turbine engine compression system with core compressor pressure ratio20 Jan 2026US 12,528,592 B2ROLLS-ROYCE plc
- Gas turbine engine compression system with core compressor pressure ratio26 Aug 2025US 12,397,917 B2ROLLS-ROYCE plc
- Turbomachinery engines with high-speed low-pressure turbines26 Aug 2025US 12,398,684 B2General Electric Company
- Gas turbine engine compression system with core compressor pressure ratio22 Jul 2025US 12,365,470 B2ROLLS-ROYCE plc
- Partially coated turbine blade, rotor and production method25 Jun 2026US 2026/0176973 A1Siemens Energy Global GmbH & Co. KG
- Gas turbine engine compression system with core compressor pressure ratio30 Apr 2026US 2026/0116550 A1ROLLS-ROYC plc
- Turbomachinery engines with high-speed low-pressure turbines29 Jan 2026US 2026/0028947 A1General Electric Company
- Turbomachinery engines with high-speed low-pressure turbines1 Jan 2026US 2026/0002475 A1General Electric Company
- Turbomachinery engines with high-speed low-pressure turbines1 Jan 2026US 2026/0002491 A1General Electric Company
Most cited
By later US patents
- LP turbine vane airfoil profile59US 7,367,779 B2Pratt & Whitney Canada Corp. · 2008
- Turbine shroud segment30US 6,962,482 B2Ishikawajima-Harima Heavy Industries Co., Ltd. · 2005
- Gas turbine engine with high speed low pressure turbine section27US 10,240,526 B2United Technologies Corporation · 2019
- Application of high strength titanium alloys in last stage turbine buckets having longer vane lengths16US 7,195,455 B2General Electric Company · 2007
- Turbine last stage flow path14US 8,998,577 B2General Electric Company · 2015