B21C 37/152
Making rifle or gun barrels
Official title: {Making rifle or gun barrels}
B21C37/152 (Making rifle or gun barrels) appears on 30 US grants and 12 published applications in this corpus.
Search patents in B21C- Granted patents
- 30
- Published applications
- 12
- Assignees
- 22
- Inventors
- 43
- Latest grant
- 14 Nov 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 4 | 2 |
| 2017 | 2 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 6 |
| 2020 | 5 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method for producing a highly heat-resistant weapon barrel provided with a twist profile14 Nov 2023US 11,814,694 B2Rheinmetall Waffe Munition GmbH
- Process for applying graphene layer to metallic firearm elements11 Jan 2022US 11,221,187 B2
- Method and apparatus for producing riflings in barrels of guns23 Nov 2021US 11,181,333 B2Aec-Alpen Energy Consulting GmbH
- Systems and methods for electroprocessing a gun barrel using a moving electrode22 Dec 2020US 10,870,140 B2The Government of the United States, as represented by the Secretary of the Army
- Systems and methods for electroprocessing a gun barrel using a moving electrode15 Dec 2020US 10,864,567 B2The Government of the United States, as represented by the Secretary of the Army
- Method for producing a highly heat-resistant weapon barrel provided with a twist profile8 Jul 2021US 2021/0207233 A1Rheinmetall Waffe Munition GmbH
- Systems And Methods For Electroprocessing A Gun Barrel Using A Moving Electrode17 Oct 2019US 2019/0314878 A1The Government of the United States, as represented by the Secretary of the Army
- Systems and Methods for Electroprocessing a Gun Barrel Using A Moving Electrode17 Oct 2019US 2019/0314879 A1The Government of the United States, as represented by the Secretary of the Army
- Apparatus and method for manufacturing insulated pipe assembly12 Sep 2019US 2019/0275580 A1GF Urecon Ltd.
- Process of eliminating friction and increasing structural hardness and durability and increasing longevity in the fabrication of metallic structures15 Aug 2019US 2019/0249941 A1
Most cited
By later US patents
- Multiple piece torch tip89US 4,200,235 AVictor Equipment Company · 1980
- Telescoping tubes for torque transmission29US 4,622,022 ANeapco, Inc. · 1986
- Enhanced heat exchange tube25US 6,164,370 AOlin Corporation · 2000
- Method of manufacturing a heating exchange tube20US 5,388,329 AOlin Corporation · 1995
- Gun barrel, mandrel and related processes16US 4,622,080 AAmerican Metal-Tech, Ltd. · 1986