B29L 2031/75
Shafts
Official title: {Shafts}
B29L2031/75 (Shafts) appears on 148 US grants and 141 published applications in this corpus.
Search patents in B29L- Granted patents
- 148
- Published applications
- 141
- Assignees
- 115
- Inventors
- 306
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 6 | 3 |
| 2003 | 1 | 4 |
| 2004 | 1 | 4 |
| 2005 | 2 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 2 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 5 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 2 | 3 |
| 2014 | 6 | 4 |
| 2015 | 4 | 14 |
| 2016 | 2 | 7 |
| 2017 | 7 | 7 |
| 2018 | 7 | 9 |
| 2019 | 8 | 10 |
| 2020 | 3 | 9 |
| 2021 | 5 | 14 |
| 2022 | 12 | 6 |
| 2023 | 10 | 10 |
| 2024 | 6 | 6 |
| 2025 | 7 | 6 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Composite lobe joint and manufacturing method28 Jul 2026US 12,691,647 B2Goodrich Corporation
- Rotary connecting structure and rotary coupler26 May 2026US 12,638,038 B2YKK Corporation
- Flexible composite drive shaft19 May 2026US 12,631,208 B2Goodrich Corporation
- Processing equipment and its supporting structure18 Nov 2025US 12,473,172 B2Industrial Technology Research Institute
- Method of forming a reusable surgical implement29 Jul 2025US 12,369,928 B2Gauthier Biomedical, Inc.
- Drive shaft with non-cylindrical shape8 Oct 2026US 2026/0309183 A1Hamilton Sundstrand Corporation
- Fiber-reinforced resin cylinder, manufacturing method for fiber-reinforced resin cylinder, and fiber-reinforced resin cylinder manufacturing jig6 Aug 2026US 2026/0225329 A1Astemo, Ltd.
- Pickup unit16 Apr 2026US 2026/0102930 A1Nexperia B. V.
- Drive shafts made of composite materials and methods of making such shafts15 Jan 2026US 2026/0016045 A1Hamilton Sundstrand Corporation
- Method of manufacturing a hybrid metal-composite component unit suitable for an aeronautical application25 Dec 2025US 2025/0387983 A1Airbus Helicopters Deutschland GmbH
Most cited
By later US patents
- Systems, methods, and apparatus for supported shafts119US 10,294,982 B2The Boeing Company · 2019
- Filled tubular torsion bar and its method of manufacture118US 4,836,516 AEssex Composite Systems · 1989
- Method of making a torsion bar89US 4,908,930 AEssex Composite Systems · 1990
- Composite tubular elements71US 4,173,670 AExxon Research & Engineering Co. · 1979
- Fiber reinforced composite shaft with metallic connector sleeves mounted by a knurl interlock69US 4,238,539 ACelanese Corporation · 1980