B29L 2031/3088
Helicopters
Official title: {Helicopters}
B29L2031/3088 (Helicopters) appears on 59 US grants and 63 published applications in this corpus.
Search patents in B29L- Granted patents
- 59
- Published applications
- 63
- Assignees
- 27
- Inventors
- 121
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 4 |
| 2014 | 1 | 3 |
| 2015 | 8 | 6 |
| 2016 | 1 | 9 |
| 2017 | 7 | 5 |
| 2018 | 4 | 3 |
| 2019 | 6 | 7 |
| 2020 | 8 | 5 |
| 2021 | 3 | 7 |
| 2022 | 2 | 3 |
| 2023 | 3 | 2 |
| 2024 | 3 | 2 |
| 2025 | 2 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Induction welding thermoplastic material with different electrical conductivities2 Dec 2025US 12,485,623 B2Rohr, Inc.
- Method for surface structuring11 Feb 2025US 12,220,876 B2Airbus Operations GmbH
- Self heating structural adhesives for out-of-autoclave and out-of-oven curing17 Sep 2024US 12,090,708 B2Textron Innovations Inc.
- Protector for the ends of an elongate member4 Jun 2024US 12,000,520 B2Bewi Energy AS
- Methods of forming uncured sealant assemblies and using such assemblies for sealing and bonding parts7 May 2024US 11,976,226 B2The Boeing Company
- Methods for joining thermoplastic composite structures27 Aug 2026US 2026/0249563 A1Rohr, Inc.
- Method of manufacturing a hybrid metal-composite component unit suitable for an aeronautical application25 Dec 2025US 2025/0387983 A1Airbus Helicopters Deutschland GmbH
- Induction welding thermoplastic material with different electrical conductivities6 Feb 2025US 2025/0042097 A1Rohr, Inc.
- Consolidating thermoplastic material with induction heating coil and heating plate(s)6 Feb 2025US 2025/0042578 A1Rohr, Inc.
- Structurally bonded arrangement19 Sep 2024US 2024/0308689 A1Airbus Helicopters Deutschland GmbH
Most cited
By later US patents
- Method for manufacture of a fiber reinforced composite spar for rotary wing aircraft58US 5,939,007 ASikorsky Aircraft Corporation · 1999
- Multi-layer metallic structure and composite-to-metal joint methods28US 8,993,084 B2The Boeing Company · 2015
- Mold for fabricating composite articles having integrally bonded stiffening members23US 5,190,773 AUnited Technologies Corporation · 1993
- Method of fabricating a helicopter rotor system22US 4,868,962 AThe Boeing Company · 1989
- System and method of post-cure processing of composite core18US 9,365,022 B2Bell Helicopter Textron Inc. · 2016