B21D 53/12
Cages for bearings
Official title: cages for bearings
B21D53/12 (Cages for bearings) appears on 93 US grants and 69 published applications in this corpus.
Search patents in B21D- Granted patents
- 93
- Published applications
- 69
- Assignees
- 33
- Inventors
- 172
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 3 |
| 2009 | 2 | 0 |
| 2010 | 0 | 2 |
| 2011 | 2 | 1 |
| 2012 | 0 | 3 |
| 2013 | 0 | 4 |
| 2014 | 5 | 4 |
| 2015 | 2 | 6 |
| 2016 | 6 | 5 |
| 2017 | 2 | 7 |
| 2018 | 4 | 6 |
| 2019 | 11 | 6 |
| 2020 | 7 | 7 |
| 2021 | 9 | 7 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 1 | 1 |
| 2025 | 4 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- 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
- Method and device for producing a rolling bearing cage from a sleeve-like blank24 Jun 2025US 12,337,373 B2Hsp Schwahlen GmbH
- Adjustable spacer with hardened ends6 May 2025US 12,292,083 B2Temper Corporation
- Slew-actuated piercing of radial wall15 Oct 2024US 12,115,572 B2Inno-Spin LLC
- Ball bearing8 May 2025US 2025/0146530 A1Ntn Corporation
- Method for manufacturing ring member for bearing, and mold for inversion working9 Jan 2025US 2025/0010355 A1Nsk Ltd.
- Method for manufacturing bearing ring member9 Jan 2025US 2025/0010356 A1Nsk Ltd.
- Method and device for producing a rolling bearing cage from a sleeve-like blank26 Sep 2024US 2024/0316615 A1Hsp Schwahlen GmbH
- Bearing cage assembly including stiffening ring9 Sep 2021US 2021/0277947 A1Schaeffler Technologies AG & Co. KG
Most cited
By later US patents
- Bearing cage18US 11,541,447 B2Aktiebolaget Skf · 2023
- Cage for roller bearings18US 5,528,706 ANtn Corporation · 1996
- Method of forming a roller cage17US 3,992,764 AThe Torrington Company · 1976
- Bearing components and method of making same15US 4,320,565 A1982
- Method of making formed bodies15US 6,330,748 B1Ina Walzlager Schaeffler oHG · 2001