C21D 8/0236
Cold rolling
Official title: {Cold rolling}
C21D8/0236 (Cold rolling) appears on 1,348 US grants and 2,089 published applications in this corpus.
Search patents in C21D- Granted patents
- 1,348
- Published applications
- 2,089
- Assignees
- 280
- Inventors
- 2,725
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 9 | 0 |
| 1997 | 6 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 5 |
| 2002 | 11 | 26 |
| 2003 | 24 | 25 |
| 2004 | 25 | 29 |
| 2005 | 8 | 8 |
| 2006 | 6 | 9 |
| 2007 | 3 | 5 |
| 2008 | 2 | 9 |
| 2009 | 10 | 8 |
| 2010 | 3 | 16 |
| 2011 | 2 | 16 |
| 2012 | 3 | 20 |
| 2013 | 11 | 47 |
| 2014 | 10 | 57 |
| 2015 | 19 | 79 |
| 2016 | 23 | 107 |
| 2017 | 55 | 114 |
| 2018 | 70 | 99 |
| 2019 | 90 | 146 |
| 2020 | 81 | 168 |
| 2021 | 106 | 143 |
| 2022 | 149 | 196 |
| 2023 | 96 | 212 |
| 2024 | 137 | 221 |
| 2025 | 179 | 155 |
| 2026 | 133 | 169 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ultra-high strength cold rolled steel sheet having excellent bendability, and method of manufacturing same6 Oct 2026US 12,753,455 B2Posco
- Steel sheet with excellent phosphatability and manufacturing method therefor6 Oct 2026US 12,753,458 B2Posco
- Method of manufacturing grain-oriented electrical steel sheet and hot-rolled steel sheet for grain-oriented electrical steel sheet6 Oct 2026US 12,753,471 B2Jfe Steel Corporation
- Method of producing a steel sheet for cans6 Oct 2026US 12,753,472 B2Jfe Steel Corporation
- High-strength alloyed hot-dip galvanized steel sheet and manufacturing method therefor6 Oct 2026US 12,753,477 B2Kobe Steel, Ltd.
- A cold rolled martensitic steel and a method of martensitic steel thereof8 Oct 2026US 2026/0308706 A1
- Hydrogen induced cracking-resistant cold-rolled hot-dip galvanized ultra-high-strength dual-phase steel and manufacturing method therefor8 Oct 2026US 2026/0308732 A1Baoshan Iron & Steel Co., Ltd.
- High strength steel sheet, high strength coated steel sheet, methods for producing the same, and member1 Oct 2026US 2026/0297712 A1Jfe Steel Corporation
- Coated steel sheet, member, and methods for producing the same1 Oct 2026US 2026/0297713 A1Jfe Steel Corporation
- Steel sheet and plated steel sheet1 Oct 2026US 2026/0297714 A1Nippon Steel Corporation
Most cited
By later US patents
- High-strength austenitic stainless steel strip having excellent flatness and method of manufacturing same38US 6,764,555 B2Nisshin Steel Co., Ltd. · 2004
- Oxidation resistant high-entropy alloys33US 10,190,197 B2Trustees of Dartmouth College · 2019
- Process and plant for obtaining steel strip coils having cold-rolled characteristics and directly obtained in a hot-rolling line32US 5,329,688 AHoogovens Groep B.V. · 1994
- Hot-dip galvanized steel sheet and production thereof31US 6,312,536 B1Kabushiki Kaisha Kobe Seiko Sho · 2001
- High strength galvanized steel plate excellent in adhesion of plated metal and formability in press working and high strength alloy galvanized steel plate and method for production thereof31US 6,517,955 B1Nippon Steel Corporation · 2003