B21K 1/04
Ball-races or sliding bearing races
Official title: ball-races {or sliding bearing races}
B21K1/04 (Ball-races or sliding bearing races) appears on 64 US grants and 64 published applications in this corpus.
Search patents in B21K- Granted patents
- 64
- Published applications
- 64
- Assignees
- 39
- Inventors
- 148
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 1 | 2 |
| 2010 | 0 | 6 |
| 2011 | 1 | 3 |
| 2012 | 2 | 5 |
| 2013 | 4 | 3 |
| 2014 | 2 | 2 |
| 2015 | 4 | 2 |
| 2016 | 2 | 4 |
| 2017 | 3 | 2 |
| 2018 | 3 | 5 |
| 2019 | 3 | 1 |
| 2020 | 3 | 5 |
| 2021 | 4 | 1 |
| 2022 | 1 | 2 |
| 2023 | 0 | 2 |
| 2024 | 3 | 3 |
| 2025 | 4 | 7 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Process for producing blanks of rings10 Mar 2026US 12,569,908 B2
- Manufacturing method of ball screw using rolling machine28 Oct 2025US 12,454,000 B2Hitachi Astemo, Ltd.
- Method for manufacturing ring member for bearing, and mold for inversion working9 Sep 2025US 12,409,487 B2
- Method for manufacturing bearing ring member9 Sep 2025US 12,409,488 B2
- Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle28 Jan 2025US 12,209,614 B2Nsk Ltd.
- Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle1 Oct 2026US 2026/0298290 A1Nsk Ltd.
- Method and Forming Device for Producing Ring-Shaped Formed Parts11 Dec 2025US 2025/0375810 A1Hatebur Umformmaschinen AG
- Manufacturing method of track race of tripod constant velocity joint23 Oct 2025US 2025/0327485 A1Erae Ams Co., Ltd.
- Method for manufacturing ring-shaped member, method for manufacturing bearing, method for manufacturing machine part, method for manufacturing vehicle, method for manufacturing mechanical device, ring-shaped member, bearing element, bearing, mechanical device, and vehicle28 Aug 2025US 2025/0269421 A1Nsk Ltd.
- Bearing element manufacturing method, bearing manufacturing method, machine manufacturing method, vehicle manufacturing method, bearing element, bearing, machine, and vehicle20 Mar 2025US 2025/0092914 A1Nsk Ltd.
Most cited
By later US patents
- Method of manufacturing a component16US 5,878,496 APurdue Research Foundation · 1999
- Bearing assemblies, apparatuses, and motor assemblies using the same16US 9,297,411 B2US Synthetic Corporation · 2016
- Forging recessed configurations on a body member15US 4,145,798 AFederal-Mogul Corporation · 1979
- Method of producing split bearing rings13US 4,541,157 ANTN Toyo Bearing Co., Ltd. · 1985
- Process and apparatus for producing at least two forgings on a hot-forming press12US 4,590,780 AHatebur Umformmaschinen AG · 1986