F05D 2250/131
Polygonal
Official title: polygonal
F05D2250/131 (Polygonal) appears on 89 US grants and 104 published applications in this corpus.
Search patents in F05D- Granted patents
- 89
- Published applications
- 104
- Assignees
- 52
- Inventors
- 287
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 4 |
| 2012 | 0 | 2 |
| 2013 | 3 | 4 |
| 2014 | 1 | 3 |
| 2015 | 5 | 4 |
| 2016 | 3 | 4 |
| 2017 | 5 | 4 |
| 2018 | 2 | 13 |
| 2019 | 10 | 22 |
| 2020 | 12 | 8 |
| 2021 | 11 | 6 |
| 2022 | 10 | 9 |
| 2023 | 9 | 4 |
| 2024 | 4 | 6 |
| 2025 | 8 | 2 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Element and method for compensation of tolerances and/or gap widths of a device and engine, assembly method for a shaft/hub connection13 Jan 2026US 12,523,160 B2Universität der Bundeswehr München
- Propeller shaft assembly for aircraft engine21 Oct 2025US 12,448,998 B2Pratt & Whitney Canada Corp.
- Tie rod-locking nut assembly and gas turbine including same14 Oct 2025US 12,442,300 B2Doosan Enerbility Co., Ltd.
- Turbine blade with cooling channels2 Sep 2025US 12,404,775 B1Rtx Corporation
- Pump with precast concrete dual volute26 Aug 2025US 12,398,730 B1Flowserve Pte. Ltd.
- Rocket solid propellant grain25 Jun 2026US 2026/0176212 A1Siec Badawcza Lukasiewicz - Instytut Lotnictwa
- Turbine housings for a turbocharger, turbine and turbocharger5 Feb 2026US 2026/0036138 A1Cummins Inc.
- Polygonal profile coupling of pumps in a lubrication assembly6 Nov 2025US 2025/0341177 A1Safran Aero Boosters SA
- Method for correcting the radial moment weight of a vane for an aircraft turbine engine27 Mar 2025US 2025/0100673 A1Safran Aircraft Engines
- Element and method for compensation of tolerances and/or gap widths of a device and engine, assembly method for a shaft/hub connection12 Dec 2024US 2024/0410291 A1Universität der Bundeswehr München
Most cited
By later US patents
- Shroud segment and assembly with surface recessed seal bridging adjacent members73US 6,893,214 B2General Electric Company · 2005
- System for modulating turbine blade tip clearance24US 10,415,419 B2United Technologies Corporation · 2019
- Strip seal axial assembly groove20US 10,662,794 B2ROLLS-ROYCE plc · 2020
- Component lock for a gas turbine engine19US 8,840,375 B2United Technologies Corporation · 2014
- Modified structural truss for airfoils16US 10,378,364 B2United Technologies Corporation · 2019