B21H 1/12
Rings for ball or roller bearings
Official title: rings for ball or roller bearings
B21H1/12 (Rings for ball or roller bearings) appears on 51 US grants and 32 published applications in this corpus.
Search patents in B21H- Granted patents
- 51
- Published applications
- 32
- Assignees
- 32
- Inventors
- 120
- Latest grant
- 8 Oct 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 2 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 0 | 3 |
| 2011 | 0 | 1 |
| 2012 | 2 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 3 |
| 2017 | 1 | 5 |
| 2018 | 3 | 2 |
| 2019 | 3 | 1 |
| 2020 | 4 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 2 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway8 Oct 2024US 12,110,926 B2thyssenkrupp AG
- Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway16 Jan 2024US 11,873,864 B2thyssenkrupp AG
- Radial/axial ring rolling mill for rolling a ring3 Aug 2021US 11,077,482 B2Schuler Pressen GmbH
- Ring-rolling machine and method for lifting and lowering the mandrel roll of a ring-rolling machine5 Jan 2021US 10,882,097 B2SMS group GmbH
- Ring rolling device with axially fixed rolling bearings22 Dec 2020US 10,870,144 B2Hatebur Umformmaschinen AG
- Manufacturing method of track race of tripod constant velocity joint23 Oct 2025US 2025/0327485 A1Erae Ams Co., Ltd.
- Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway11 Apr 2024US 2024/0117841 A1thyssenkrupp AG
- Ring rolling machine with device for ring manipulation30 Mar 2023US 2023/0101959 A1SMS group GmbH
- Method for increasing the load-bearing capacity, and rolling device for hard rolling a surface-hardened rolling-bearing raceway29 Dec 2022US 2022/0412407 A1thyssenkrupp AG
- Radial/axial ring rolling mill for rolling a ring20 Aug 2020US 2020/0261962 A1Schuler Pressen GmbH
Most cited
By later US patents
- Method for the controlled mechanical working of sintered porous powder metal shapes to effect surface and subsurface densification38US 4,059,879 ATextron Inc. · 1977
- Ring rolling machine21US 4,173,877 AThyssen Industrie AG · 1979
- Method of manufacturing bearing ring18US 5,261,159 ANtn Corporation · 1993
- Composite bearing race and method for its fabrication17US 4,189,816 ASociete Nouvelle de Roulements · 1980
- Making rings from tube stock17US 4,302,958 AFormflo Limited · 1981