C21D 2251/00
Treating composite or clad material
C21D2251/00 (Treating composite or clad material) appears on 217 US grants and 284 published applications in this corpus.
Search patents in C21D- Granted patents
- 217
- Published applications
- 284
- Assignees
- 184
- Inventors
- 756
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 3 |
| 2003 | 3 | 6 |
| 2004 | 4 | 4 |
| 2005 | 3 | 3 |
| 2006 | 2 | 2 |
| 2007 | 2 | 4 |
| 2008 | 0 | 7 |
| 2009 | 4 | 6 |
| 2010 | 2 | 0 |
| 2011 | 3 | 10 |
| 2012 | 5 | 14 |
| 2013 | 6 | 5 |
| 2014 | 6 | 17 |
| 2015 | 6 | 37 |
| 2016 | 10 | 12 |
| 2017 | 10 | 19 |
| 2018 | 13 | 17 |
| 2019 | 18 | 12 |
| 2020 | 17 | 13 |
| 2021 | 9 | 21 |
| 2022 | 12 | 20 |
| 2023 | 10 | 19 |
| 2024 | 19 | 9 |
| 2025 | 14 | 11 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Press hardening method25 Aug 2026US 12,716,107 B2ArcelorMittal
- Nickel-based alloy for manufacturing pipeline tubes16 Jun 2026US 12,655,501 B2Aperam
- Carbon steel and austenitic stainless steel rolling clad plate manufacturing method therefor19 May 2026US 12,629,766 B2Baoshan Iron & Steel Co., Ltd.
- Steel sheet, member, and method for producing them12 May 2026US 12,624,410 B2Jfe Steel Corporation
- Multi-layer composite cold-rolled steel plate and manufacturing method therefor28 Apr 2026US 12,612,671 B2Baoshan Iron & Steel Co., Ltd.
- Method for producing hardened steel components17 Sep 2026US 2026/0275441 A1voestalpine Metal Forming GmbH
- Stainless steel clad plate with excellent shape and preparation method thereof20 Aug 2026US 2026/0241428 A1Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd (Cn)
- A unitary firewall panel for a vehicle20 Aug 2026US 2026/0242003 A1
- Method of manufacturing overlapped hot stamped component2 Jul 2026US 2026/0183820 A1Nippon Steel Corporation
- Soft magnetic composite material sheet and method for producing same30 Apr 2026US 2026/0117390 A1Hitachi, Ltd.
Most cited
By later US patents
- Multilayer composite tubular structure and method of making381US 5,858,556 AUti Inc. · 1999
- Methods for fabricating gradient alloy articles with multi-functional properties153US 9,101,979 B2California Institute of Technology · 2015
- Ground-engaging tool for an excavation bucket60US 6,457,269 B1Caterpillar SARL · 2002
- 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
- System for continuous feeding of filler material for friction stir welding, processing and fabrication46US 8,875,976 B2Aeroprobe Corporation · 2014