F42B 10/44
Boat-tails specially adapted for drag reduction
F42B10/44 (Boat-tails specially adapted for drag reduction) appears on 83 US grants and 73 published applications in this corpus.
Search patents in F42B- Granted patents
- 83
- Published applications
- 73
- Assignees
- 41
- Inventors
- 115
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 1 |
| 2005 | 3 | 4 |
| 2006 | 2 | 3 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 4 |
| 2012 | 2 | 1 |
| 2013 | 2 | 2 |
| 2014 | 2 | 1 |
| 2015 | 3 | 0 |
| 2016 | 3 | 4 |
| 2017 | 2 | 5 |
| 2018 | 3 | 5 |
| 2019 | 10 | 9 |
| 2020 | 6 | 9 |
| 2021 | 7 | 2 |
| 2022 | 6 | 5 |
| 2023 | 5 | 8 |
| 2024 | 7 | 1 |
| 2025 | 3 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Range extension device14 Apr 2026US 12,601,575 B2BAE SYSTEMS plc
- Extended range bullet28 Oct 2025US 12,455,150 B2Federal Cartridge Company
- Bullet comprising inlet and outlet channels21 Oct 2025US 12,449,240 B2
- Sacrificial device for sub-caliber munition3 Jun 2025US 12,320,624 B1The United States of America as represented by the Secretary of the Navy
- Enhanced projectile for precision rifle ammunition with more uniform external ballistic performance and enhanced terminal ballistic performance3 Dec 2024US 12,158,329 B2Superior Shooting Systems, Inc.
- Enhanced Projectile for Precision Rifle Ammunition with more Uniform External ballistic performance and Enhanced Terminal Ballistic Performance4 Jun 2026US 2026/0153313 A1Superior Shooting Systems, Inc.
- Increase Volume, Ballistically Matched Projectile for Enhanced Effect21 May 2026US 2026/0139935 A1The United States of America as represented by the Secretary of the Navy
- Range extension device18 Dec 2025US 2025/0383188 A1BAE SYSTEMS plc
- Hybrid projectile4 Dec 2025US 2025/0369736 A1True Velocity IP Holdings, LLC
- Bullet Comprising Inlet and Outlet Channels11 Sep 2025US 2025/0283703 A1
Most cited
By later US patents
- Ammunition projectile having enhanced flight characteristics215US 5,798,478 ACove Corporation · 1998
- Projectile209US 8,893,621 B12014
- Non-lethal cartridge with spin-stabilized projectile43US 6,041,712 AThe United States of America as represented by the Secretary of the Army · 2000
- Projectile with reduced base drag36US 4,813,635 AUnited Technologies Corporation · 1989
- Base drag reducing device34US 6,297,486 B1Rafael-Armament Development Authority Ltd. · 2001