B21J 1/02
Preliminary treatment of metal stock without particular shaping
Official title: Preliminary treatment of metal stock without particular shaping, e.g. salvaging segregated zones, forging or pressing in the rough (modifying the physical properties by deformation C21D7/00, C22F1/00)
B21J1/02 (Preliminary treatment of metal stock without particular shaping) appears on 122 US grants and 138 published applications in this corpus.
Search patents in B21J- Granted patents
- 122
- Published applications
- 138
- Assignees
- 111
- Inventors
- 366
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 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 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 2 | 6 |
| 2003 | 3 | 2 |
| 2004 | 5 | 7 |
| 2005 | 3 | 3 |
| 2006 | 5 | 5 |
| 2007 | 3 | 6 |
| 2008 | 2 | 4 |
| 2009 | 5 | 5 |
| 2010 | 2 | 5 |
| 2011 | 3 | 6 |
| 2012 | 4 | 7 |
| 2013 | 6 | 4 |
| 2014 | 3 | 14 |
| 2015 | 9 | 5 |
| 2016 | 7 | 8 |
| 2017 | 9 | 4 |
| 2018 | 3 | 7 |
| 2019 | 6 | 3 |
| 2020 | 6 | 7 |
| 2021 | 7 | 7 |
| 2022 | 4 | 9 |
| 2023 | 5 | 3 |
| 2024 | 4 | 0 |
| 2025 | 2 | 5 |
| 2026 | 4 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sputtering target and method for producing same19 May 2026US 12,630,917 B2JX Advanced Metals Corporation
- Systems, compositions, and methods for producing sharp edges10 Mar 2026US 12,569,895 B2Massachusetts Institute of Technology
- Tantalum sputtering target with improved performance and predictability and method of manufacturing10 Feb 2026US 12,545,993 B2Tosoh SMD, Inc.
- Method for machining a metal cast strand of round cross-section by reducing the cross-section in the final solidification region13 Jan 2026US 12,521,786 B2
- Method for producing metal components and metal component produced in this way13 May 2025US 12,296,374 B2Mg Meccanica Srl
- Systems and methods for the local incremental deformation of local component regions6 Aug 2026US 2026/0227764 A1Ohio State Innovation Foundation
- Width prediction method of rough rolled material, width control method of rough rolled material, manufacturing method of hot-rolled steel sheet, and generation method of width prediction model of rough rolled material2 Jul 2026US 2026/0183816 A1Jfe Steel Corporation
- Systems, compositions, and methods for producing sharp edges30 Apr 2026US 2026/0115776 A1Massachusetts Institute of Technology
- Method for manufacturing high-chromium (cr) molten steel, method for manufacturing cast piece, and method for manufacturing press roll16 Apr 2026US 2026/0103769 A1Posco
- Process monitor for open die forging27 Nov 2025US 2025/0360556 A1SMS group GmbH
Most cited
By later US patents
- Method for producing ultrafine-grained materials using repetitive corrugation and straightening77US 6,197,129 B1The United States of America as represented by the United States Department of Energy · 2001
- Forging press and method68US 4,096,730 AUnited States Steel Corporation · 1978
- Methods of fabricating metallic materials53US 6,908,517 B2Honeywell International Inc. · 2005
- Method of working metal, metal body obtained by the method and metal-containing ceramic body obtained by the method46US 7,559,221 B2Rinascimetalli Ltd. · 2009
- Physical vapor deposition targets, and methods of fabricating metallic materials28US 6,946,039 B1Honeywell International Inc. · 2005