F05D 2250/281
Threaded
Official title: threaded
F05D2250/281 (Threaded) appears on 51 US grants and 54 published applications in this corpus.
Search patents in F05D- Granted patents
- 51
- Published applications
- 54
- Assignees
- 32
- Inventors
- 136
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 2 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 3 |
| 2015 | 1 | 8 |
| 2016 | 4 | 12 |
| 2017 | 6 | 4 |
| 2018 | 7 | 4 |
| 2019 | 8 | 3 |
| 2020 | 3 | 3 |
| 2021 | 3 | 4 |
| 2022 | 2 | 1 |
| 2023 | 3 | 1 |
| 2024 | 1 | 0 |
| 2025 | 1 | 0 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Radially captured in situ balancing masses for aircraft powerplant14 Apr 2026US 12,601,263 B1Pratt & Whitney Canada Corp.
- Mechanical assembly for the transmission of axial forces between at least two rotor parts of a turbomachine and method for producing a variable threading for such an assembly10 Feb 2026US 12,546,222 B2Safran Aircraft Engines
- Stress redistribution system for threaded connection of a gas turbine engine spool11 Nov 2025US 12,467,364 B1Honeywell International Inc.
- Centrifugal well pump with threadedly coupled diffusers5 Nov 2024US 12,135,040 B2Schlumberger Technology Corporation
- Rotary machine with cooling jacket including helical groove17 Oct 2023US 11,788,552 B2
- Seal runner locking structure11 Jun 2026US 2026/0160174 A1Rtx Corporation
- Radially captured in situ balancing masses for aircraft powerplant28 May 2026US 2026/0146536 A1Pratt & Whitney Canada Corp.
- Shaft assembly for a gas turbine engine7 May 2026US 2026/0125983 A1Pratt & Whitney Canada Corp.
- Centrifugal well pump with threadedly coupled diffusers12 Jan 2023US 2023/0012388 A1ZiLift Holdings, Ltd.
- Ring-shaped booster rocket25 Aug 2022US 2022/0268240 A1Raytheon Company
Most cited
By later US patents
- Locked threaded insert for high stress application21US 4,828,441 AUnited Technologies Corporation · 1989
- Compressor impeller with stress riser20US 7,001,155 B2Honeywell International Inc. · 2006
- Shaft/hub connection16US 6,918,723 B2ABB Turbo Systems AG · 2005
- Method of forming threaded polar openings for composite pressure vessels14US 4,732,634 AHercules Incorporated · 1988
- Threaded polar openings for composite pressure vessels12US 4,602,480 AHercules Incorporated · 1986