B21K 1/02
Balls, rolls, or rollers
Official title: balls, rolls, or rollers, e.g. for bearings
B21K1/02 (Balls, rolls, or rollers) appears on 63 US grants and 28 published applications in this corpus.
Search patents in B21K- Granted patents
- 63
- Published applications
- 28
- Assignees
- 40
- Inventors
- 129
- Latest grant
- 24 Dec 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 4 |
| 2004 | 1 | 0 |
| 2005 | 2 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 2 |
| 2016 | 2 | 1 |
| 2017 | 0 | 1 |
| 2018 | 2 | 0 |
| 2019 | 2 | 3 |
| 2020 | 2 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 2 | 2 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cylindrical body and apparatus24 Dec 2024US 12,172,845 B2Canon Kabushiki Kaisha
- Intermediate for manufacturing projectiles of a deformable bullet, projectile, deformed projectile, tool for manufacturing the intermediate and method for manufacturing the intermediate23 Jan 2024US 11,879,709 B2Ruag Ammotec GmbH
- Bullets and methods of making bullets21 Feb 2023US 11,585,645 B2Olin Corporation
- Intermediate for manufacturing projectiles of a deformable bullet, projectile, deformed projectile, tool for manufacturing the intermediate and method for manufacturing the intermediate24 Jan 2023US 11,561,074 B2Ruag Ammotec GmbH
- Hydraulic forming machine and metal ball forming machine19 Apr 2022US 11,305,321 B2Xi'an Metalwk Hydraumatic Machinery Co., Ltd.
- Intermediate for manufacturing projectiles of a deformable bullet, projectile, deformed projectile, tool for manufacturing the intermediate and method for manufacturing the intermediate20 Apr 2023US 2023/0117770 A1Ruag Ammotec GmbH
- Cylindrical body and apparatus30 Mar 2023US 2023/0097168 A1Canon Kabushiki Kaisha
- Intermediate for manufacturing projectiles of a deformable bullet, projectile, deformed projectile, tool for manufacturing the intermediate and method for manufacturing the intermediate26 Nov 2020US 2020/0370872 A1Ruag Ammotec GmbH
- Molding device for manufacturng cylindrical rolling body, manufacturing method for cylindrical rolling body, manufacturing method for rolling bearing, manufacturing method for vehicle, and manufacturing method for mechanical apparatus28 Nov 2019US 2019/0358696 A1Nsk Ltd.
- Hydraulic forming machine and metal ball forming machine24 Oct 2019US 2019/0321872 A1Xi'an Metalwk Hydraumatic Machinery Co., Ltd.
Most cited
By later US patents
- Intermediate article used to form a bullet projectile or component and a finally formed bullet70US 5,259,320 ABarnes Bullets, Inc. · 1993
- Method of manufacturing a hollow point bullet65US 5,943,749 AThe Nippert Company · 1999
- Methods of manufacturing a bullet61US 5,131,123 ABarnes Bullets, Inc. · 1992
- Small arms projectile46US 4,517,897 ASchweizerische Eidgenossenschaft, Vertreten durch die Eidg. Munitionsfabrik Thun der Gruppe fur Rustungsdienste · 1985
- Method of manufacturing a hollow point bullet37US 5,079,814 ABlount, Inc. · 1992