C21D 7/13
Modifying the physical properties of iron or steel by deformation: by hot
Official title: by hot working
C21D7/13 (Modifying the physical properties of iron or steel by deformation: by hot) appears on 494 US grants and 720 published applications in this corpus.
Search patents in C21D- Granted patents
- 494
- Published applications
- 720
- Assignees
- 306
- Inventors
- 1,812
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 6 | 6 |
| 2003 | 7 | 13 |
| 2004 | 5 | 10 |
| 2005 | 3 | 4 |
| 2006 | 7 | 8 |
| 2007 | 3 | 7 |
| 2008 | 3 | 15 |
| 2009 | 5 | 18 |
| 2010 | 10 | 20 |
| 2011 | 5 | 18 |
| 2012 | 14 | 21 |
| 2013 | 15 | 16 |
| 2014 | 10 | 42 |
| 2015 | 21 | 39 |
| 2016 | 19 | 38 |
| 2017 | 20 | 31 |
| 2018 | 29 | 34 |
| 2019 | 31 | 25 |
| 2020 | 22 | 30 |
| 2021 | 30 | 38 |
| 2022 | 18 | 53 |
| 2023 | 26 | 67 |
| 2024 | 41 | 61 |
| 2025 | 50 | 58 |
| 2026 | 35 | 47 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Slurry-blasted hot-roll-based hot dip aluminized steel strip6 Oct 2026US 12,753,476 B2Cleveland-Cliffs Steel Properties Inc.
- Wire rod for 5000 MPa-grade diamond wire and production method therefor15 Sep 2026US 12,735,763 B2Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd (Cn)
- Extremely thick steel plate for steam drum having excellent surface quality and lamellar tear resistance, and manufacturing method for same25 Aug 2026US 12,716,106 B2Posco
- Dehydrogenation method for steel material and steel product, and production method for steel material and steel product21 Jul 2026US 12,686,896 B2Jfe Steel Corporation
- Steel sheet for hot stamping, method for manufacturing the same, hot stamped component, and method for manufacturing the same16 Jun 2026US 12,655,495 B2Nippon Steel Corporation
- Cold-rolled steel material and method for producing same10 Sep 2026US 2026/0265853 A1Hyundai Steel Company
- Method for Producing a Rail for Railway Infrastructure10 Sep 2026US 2026/0265854 A1voestalpine Rail Technology GmbH
- Hot-stamped product and method of producing the same27 Aug 2026US 2026/0249343 A1Nippon Steel Corporation
- 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
Most cited
By later US patents
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- Nickel base alloy forged parts54US 5,374,323 AAluminum Company of America · 1994
- 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
- Sheet forming of metallic glass by rapid capacitor discharge46US 8,613,815 B2California Institute of Technology · 2013
- Nickel base alloy forged parts40US 5,360,496 AAluminum Company of America · 1994