B21H 1/22
Making articles shaped as bodies of revolution: characterised by use of rolls
Official title: characterised by use of rolls having circumferentially varying profile {; Die-rolling}
B21H1/22 (Making articles shaped as bodies of revolution: characterised by use of rolls) appears on 16 US grants and 10 published applications in this corpus.
Search patents in B21H- Granted patents
- 16
- Published applications
- 10
- Assignees
- 13
- Inventors
- 36
- Latest grant
- 11 Mar 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 2 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Stretch rolling device and stretch rolling method11 Mar 2025US 12,246,370 B2SMS group GmbH
- Scattered topography rolling of powered metal gears25 Jul 2023US 11,707,792 B2GM Global Technology Operations LLC
- Stretch rolling method and stretch rolling unit15 Nov 2022US 11,498,116 B2SMS group GmbH
- Forging roll device27 Sep 2022US 11,453,042 B2Nippon Steel & Sumitomo Metal Corporation
- Method for manufacturing ring-rolled product5 Oct 2021US 11,135,642 B2Hitachi Metals, Ltd.
- Stretch rolling device and stretch rolling method17 Nov 2022US 2022/0362827 A1SMS group GmbH
- Scattered topography rolling of powered metal gears31 Mar 2022US 2022/0097159 A1GM Global Technology Operations LLC
- Method for manufacturing ring-rolled product1 Oct 2020US 2020/0306817 A1Hitachi Metals, Ltd.
- Stretch rolling method and stretch rolling unit23 Jan 2020US 2020/0023426 A1SMS group GmbH
- Forging roll device26 Sep 2019US 2019/0291170 A1Nippon Steel & Sumitomo Metal Corporation
Most cited
By later US patents
- Device for forming asymmetrical articles by rolling7US 4,811,585 AMitsubishi Jukogyo Kabushiki Kaisha · 1989
- Drive mechanism of a pair of forging or stretching rollers6US 4,014,198 ALangenstein & Schemann GmbH · 1977
- Arrangement for metal working by rolling2US 4,070,892 A1978
- Method of forming asymmetrical articles by rolling2US 5,060,497 AMitsubishi Jukogyo Kabushiki · 1991
- Method for manufacturing ring-rolled product1US 11,135,642 B2Hitachi Metals, Ltd. · 2021