C21D 8/0442
Flattening
Official title: {Flattening; Dressing; Flexing}
C21D8/0442 (Flattening) appears on 25 US grants and 41 published applications in this corpus.
Search patents in C21D- Granted patents
- 25
- Published applications
- 41
- Assignees
- 17
- Inventors
- 117
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 2 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 4 |
| 2015 | 1 | 3 |
| 2016 | 1 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 4 |
| 2020 | 2 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 5 |
| 2023 | 3 | 4 |
| 2024 | 5 | 5 |
| 2025 | 1 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steel aerosol monobloc11 Aug 2026US 12,703,901 B2ArcelorMittal
- Method of manufacutring a high-strength cold rolled steel sheet having high hole expansion ratio, and highstrength hot-dip galvanized steel sheet13 Jan 2026US 12,522,888 B2Posco
- Outer plate component for automobile, blank sheet, manufacturing method for blank sheet, and manufacturing facility for blank sheet13 Jan 2026US 12,522,907 B2Nippon Steel Corporation
- Sheet steel having a deterministic surface structure25 Feb 2025US 12,233,442 B2ThyssenKrupp Steel Europe AG
- Bake-hardened hot-dip galvanized steel sheet with excellent powdering resistance, and manufacturing method therefor31 Dec 2024US 12,180,559 B2Posco
- High strength steel strip or sheet excellent in ductility and bendability, manufacturing method thereof, car or truck component4 Jun 2026US 2026/0152817 A1Tata Steel Nederland Technology B.V.
- Steel sheet10 Jul 2025US 2025/0223677 A1Nippon Steel Corporation
- Method of producing a steel sheet for cans9 Jan 2025US 2025/0011907 A1Jfe Steel Corporation
- Sheet Metal Component and Method for Producing Same26 Dec 2024US 2024/0425946 A1ThyssenKrupp Steel Europe AG
- Outer plate component for automobile, blank sheet, manufacturing method for blank sheet, and manufacturing facility for blank sheet24 Oct 2024US 2024/0352565 A1Nippon Steel Corporation
Most cited
By later US patents
- Apparatus for hot-forming, press-quenching, and cutting semifinished hardenable-steel workpiece20US 8,261,591 B2Benteler Automobiltechnik GmbH · 2012
- Cold-rolled steel sheet and method for manufacturing same, and hot-stamp formed body11US 10,072,324 B2Nippon Steel & Sumitomo Metal Corporation · 2018
- Method of producing high-strength steel sheet used for can10US 6,063,214 AKawasaki Steel Corporation · 2000
- High tensile hot-rolled steel sheet excellent in resistance to scuff on mold and in fatigue characteristics2US 7,485,194 B2Jfe Steel Corporation · 2009
- Cold-rolled and recrystallization annealed flat steel product, and method for the production thereof1US 10,683,560 B2thyssenkrupp AG · 2020