B21B 2261/22
Hardness
B21B2261/22 (Hardness) appears on 17 US grants and 12 published applications in this corpus.
Search patents in B21B- Granted patents
- 17
- Published applications
- 12
- Assignees
- 21
- Inventors
- 43
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 0 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rolling control device, rolling control method, and program21 Oct 2025US 12,447,517 B2Nippon Steel Corporation
- Cooling bar and cooling process with variable cooling rate for steel sheets1 Nov 2022US 11,484,926 B2SMS group GmbH
- Rolling mill with rolling dependent on material properties4 Oct 2022US 11,458,518 B2Primetals Technologies Germany GmbH
- Manufacture of semi-finished products and structural components with locally different material thicknesses14 Jul 2020US 10,710,132 B2thyssenkrupp AG
- Heat radiating plate and method for producing same15 Jan 2019US 10,180,293 B2Dowa Metaltech Co., Ltd.
- Method of making thick aluminum alloy products8 Oct 2026US 2026/0308740 A1Arconic Technologies LLC
- Rolling control device, rolling control method, and program14 Dec 2023US 2023/0398590 A1Nippon Steel Corporation
- Rolling mill with rolling dependent on material properties29 Jul 2021US 2021/0229149 A1Primetals Technologies Germany GmbH
- Cooling bar and cooling process with variable cooling rate for steel sheets19 Nov 2020US 2020/0360976 A1SMS group GmbH
- Manufacture of semi-finished products and structural components with locally different material thicknesses27 Sep 2018US 2018/0272399 A1thyssenkrupp AG
Most cited
By later US patents
- Method of making CG iron16US 4,596,606 AFord Motor Company · 1986
- Constant reduction multi-stand hot rolling mill set-up method12US 5,609,053 AAlcan Aluminum Corporation · 1997
- Apparatus and method for work hardening an endless belt for use in a belt caster9US 5,640,868 ALarex A.G. · 1997
- Method and control device for controlling a material-processing process8US 5,778,151 ASiemens Aktiengesellschaft · 1998
- Method for increasing the range of production of a metal product rolling installation and installation therefor5US 7,481,089 B2Siemens Vai Metals Technologies GmbH · 2009