F05D 2250/141
Circular
Official title: circular
F05D2250/141 (Circular) appears on 213 US grants and 231 published applications in this corpus.
Search patents in F05D- Granted patents
- 213
- Published applications
- 231
- Assignees
- 80
- Inventors
- 633
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 2 | 3 |
| 2003 | 2 | 0 |
| 2004 | 0 | 3 |
| 2005 | 2 | 3 |
| 2006 | 1 | 3 |
| 2007 | 2 | 4 |
| 2008 | 4 | 8 |
| 2009 | 4 | 5 |
| 2010 | 2 | 4 |
| 2011 | 3 | 10 |
| 2012 | 5 | 3 |
| 2013 | 5 | 4 |
| 2014 | 4 | 7 |
| 2015 | 6 | 4 |
| 2016 | 5 | 18 |
| 2017 | 7 | 22 |
| 2018 | 12 | 13 |
| 2019 | 22 | 20 |
| 2020 | 17 | 20 |
| 2021 | 16 | 18 |
| 2022 | 17 | 13 |
| 2023 | 17 | 14 |
| 2024 | 21 | 15 |
| 2025 | 9 | 5 |
| 2026 | 8 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Air leakage restrictor arrangement for an aircraft powerplant25 Aug 2026US 12,716,360 B2Pratt & Whitney Canada Corp.
- Fan assembly2 Jun 2026US 12,644,461 B2Dyson Technology Limited
- Reusable upper stage rocket14 Apr 2026US 12,601,314 B2
- First stage impulse steam turbine nozzle axially tangential holes matrix10 Mar 2026US 12,571,322 B1Northrop Grumman Systems Corporation
- Assembly for an aircraft turbomachine, and aircraft turbomachine10 Mar 2026US 12,571,324 B2Safran Ceramics
- Gas turbine for controlling thermal expansion of vane carrier10 Sep 2026US 2026/0266198 A1Doosan Enerbility Co., Ltd.
- Diffused holes for inter-segment purge and method16 Jul 2026US 2026/0201808 A1Rtx Corporation
- Turbofan engine including a fan actuation system2 Jul 2026US 2026/0185535 A1General Electric Company
- Clearance control system for blade outer air seal28 May 2026US 2026/0146544 A1Rtx Corporation
- Turbine engine with a blade assembly having a dovetail16 Apr 2026US 2026/0103990 A1General Electric Company
Most cited
By later US patents
- Circular stage of vanes connected at internal ends thereof by a connecting ring41US 6,129,512 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 2000
- Apparatus for heating or cooling a circular housing37US 6,035,929 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 2000
- Airfoil trailing edge cooling construction37US 6,616,406 B2Alstom (Switzerland) Ltd · 2003
- Circular arc multi-bore fan disk33US 6,520,742 B1General Electric Company · 2003
- Device for cooling or heating a circular housing32US 6,149,074 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 2000