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B21B 1/28

By cold-rolling

Official title: by cold-rolling {, e.g. Steckel cold mill}

B21B1/28 (By cold-rolling) appears on 133 US grants and 82 published applications in this corpus.

Search patents in B21B

Granted patents: 133
Published applications: 82
Assignees: 79
Inventors: 352
Latest grant: 12 May 2026

Filings by year

B21B 1/28: granted patents and published applications per publication year
Year	Granted patents	Published applications
1976	2	0
1977	0	0
1978	1	0
1979	0	0
1980	1	0
1981	4	0
1982	2	0
1983	3	0
1984	2	0
1985	2	0
1986	2	0
1987	0	0
1988	2	0
1989	4	0
1990	1	0
1991	2	0
1992	2	0
1993	2	0
1994	1	0
1995	4	0
1996	1	0
1997	8	0
1998	6	0
1999	3	0
2000	5	0
2001	4	2
2002	6	3
2003	5	2
2004	2	3
2005	3	2
2006	0	4
2007	2	3
2008	0	4
2009	1	3
2010	3	5
2011	2	2
2012	2	0
2013	5	2
2014	3	2
2015	1	6
2016	2	3
2017	6	4
2018	3	1
2019	2	3
2020	3	1
2021	0	3
2022	1	7
2023	3	4
2024	6	7
2025	5	1
2026	3	5

By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.

Recent patents

Manufacturing method and manufacturing equipment of cold-rolled steel sheet12 May 2026US 12,623,264 B2Jfe Steel Corporation
Method of manufacturing a steel strip and coated steel sheet obtainable thereby12 May 2026US 12,624,407 B2Tata Steel Ijmuiden B.V.
Cold rolling facility, cold rolling method, and manufacturing method of metal plate17 Mar 2026US 12,576,437 B2Jfe Steel Corporation
Method of detecting chattering in cold rolling mill, chattering detecting device for cold rolling mill, cold rolling method, cold rolling mill, and method of manufacturing steel sheet19 Aug 2025US 12,390,846 B2Jfe Steel Corporation
Method for producing grain-oriented electrical steel sheet and cold-rolling facility1 Jul 2025US 12,344,909 B2Jfe Steel Corporation

Most cited

By later US patents