C21D 8/041
Involving a particular fabrication or treatment of ingot or slab
Official title: {involving a particular fabrication or treatment of ingot or slab}
C21D8/041 (Involving a particular fabrication or treatment of ingot or slab) appears on 64 US grants and 70 published applications in this corpus.
Search patents in C21D- Granted patents
- 64
- Published applications
- 70
- Assignees
- 40
- Inventors
- 242
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 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 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 5 |
| 2009 | 1 | 4 |
| 2010 | 2 | 7 |
| 2011 | 1 | 2 |
| 2012 | 3 | 0 |
| 2013 | 0 | 0 |
| 2014 | 1 | 5 |
| 2015 | 0 | 2 |
| 2016 | 2 | 2 |
| 2017 | 5 | 3 |
| 2018 | 2 | 3 |
| 2019 | 1 | 3 |
| 2020 | 5 | 2 |
| 2021 | 2 | 8 |
| 2022 | 3 | 12 |
| 2023 | 6 | 2 |
| 2024 | 6 | 2 |
| 2025 | 5 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Low-silicon and low-carbon equivalent GPA grade multi-phase steel plate/steel strip and manufacturing method therefor20 Jan 2026US 12,529,124 B2Baoshan Iron & Steel Co., Ltd.
- Method of manufacturing clad steel sheet having excellent formability and fatigue property15 Jul 2025US 12,358,274 B2Posco
- Steel for hot stamping, hot stamping process and hot stamped component13 May 2025US 12,297,517 B2Ironovation Materials Technology Co., Ltd.
- Hot dip galvanized steel sheet and method for producing same22 Apr 2025US 12,281,392 B2Nippon Steel Corporation
- High strength steel sheet having excellent workability and method for manufacturing same18 Mar 2025US 12,252,759 B2Posco
- Low-density clad steel sheet having excellent formability and fatigue property and manufacturing method therefor3 Oct 2024US 2024/0326399 A1Posco
- Hot dip galvannealed steel sheet27 Jun 2024US 2024/0209484 A1Nippon Steel Corporation
- Low-silicon and low-carbon equivalent gpa grade multi-phase steel plate/steel strip and manufacturing method therefor16 Feb 2023US 2023/0049380 A1Baoshan Iron & Steel Co., Ltd.
- High strength steel sheet having excellent workability and method for manufacturing same26 Jan 2023US 2023/0025863 A1Posco
- A cold rolled martensitic steel and a method of martensitic steel thereof7 Jul 2022US 2022/0213573 A1
Most cited
By later US patents
- High strength steel sheet adapted for press forming and method of producing the same16US 5,582,658 AKawasaki Steel Corporation · 1996
- Method for continuous casting of highly ductile ferritic stainless steel strips between rolls, and resulting thin strips13US 6,588,494 B1Usinor · 2003
- Method of production of high strength thin-gauge steel sheet excellent in elongation and hole expandability11US 8,137,487 B2Nippon Steel Corporation · 2012
- Method for producing austenitic iron-carbon-manganese metal sheets, and sheets produced thereby9US 7,799,148 B2Arcelor France · 2010
- Process for manufacturing drawable sheet by direct casting of thin strip, and sheet thus obtained8US 6,290,787 B1Sollac · 2001