C21D 2251/02
Clad material
C21D2251/02 (Clad material) appears on 126 US grants and 175 published applications in this corpus.
Search patents in C21D- Granted patents
- 126
- Published applications
- 175
- Assignees
- 103
- Inventors
- 433
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 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 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 2 |
| 2003 | 1 | 6 |
| 2004 | 4 | 4 |
| 2005 | 3 | 2 |
| 2006 | 1 | 0 |
| 2007 | 2 | 3 |
| 2008 | 0 | 3 |
| 2009 | 0 | 3 |
| 2010 | 2 | 0 |
| 2011 | 3 | 3 |
| 2012 | 3 | 8 |
| 2013 | 3 | 1 |
| 2014 | 2 | 12 |
| 2015 | 5 | 23 |
| 2016 | 5 | 4 |
| 2017 | 5 | 13 |
| 2018 | 8 | 10 |
| 2019 | 10 | 6 |
| 2020 | 8 | 10 |
| 2021 | 5 | 11 |
| 2022 | 7 | 12 |
| 2023 | 6 | 13 |
| 2024 | 13 | 9 |
| 2025 | 11 | 8 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Multi-layer composite cold-rolled steel plate and manufacturing method therefor28 Apr 2026US 12,612,671 B2Baoshan Iron & Steel Co., Ltd.
- Method to produce void-free ferrous and non-ferrous aerospace structural castings23 Dec 2025US 12,503,773 B2Spirit AeroSystems, Inc.
- 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)
- Soft magnetic composite material sheet and method for producing same30 Apr 2026US 2026/0117390 A1Hitachi, Ltd.
- Steel sheet for hot pressing, hot-pressed member, and hot-pressed member production method19 Feb 2026US 2026/0049380 A1Jfe Steel Corporation
- Metal separator and manufacturing method therefor12 Feb 2026US 2026/0045520 A1Hyundai Steel Company
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
- Process for the production of clad hot rolled strip and the resulting product44US 4,917,969 AThyssen Stahl AG · 1990
- Process for imparting residual compressive stresses to steel machine components19US 5,879,480 AThe Timken Company · 1999
- Process for manufacturing a clad sheet which includes an abrasion-resistant layer made of tool steel, and clad sheet obtained12US 5,997,665 ACreusot-Loire Industrie · 1999