C21D 8/1261
Following hot rolling
Official title: {following hot rolling}
C21D8/1261 (Following hot rolling) appears on 332 US grants and 501 published applications in this corpus.
Search patents in C21D- Granted patents
- 332
- Published applications
- 501
- Assignees
- 72
- Inventors
- 665
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 4 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 2 |
| 2002 | 7 | 6 |
| 2003 | 7 | 4 |
| 2004 | 6 | 3 |
| 2005 | 2 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 2 | 4 |
| 2010 | 3 | 1 |
| 2011 | 3 | 0 |
| 2012 | 1 | 3 |
| 2013 | 1 | 9 |
| 2014 | 0 | 14 |
| 2015 | 2 | 30 |
| 2016 | 6 | 13 |
| 2017 | 21 | 14 |
| 2018 | 17 | 16 |
| 2019 | 15 | 21 |
| 2020 | 8 | 23 |
| 2021 | 24 | 21 |
| 2022 | 24 | 56 |
| 2023 | 19 | 54 |
| 2024 | 29 | 66 |
| 2025 | 41 | 66 |
| 2026 | 33 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Non-oriented electrical steel sheet, method for producing same, and hot-rolled steel sheet22 Sep 2026US 12,742,223 B2Nippon Steel Corporation
- Wound core22 Sep 2026US 12,744,149 B2Nippon Steel Corporation
- Method for manufacturing grain-oriented electrical steel sheet8 Sep 2026US 12,729,412 B2Jfe Steel Corporation
- Non-oriented electrical steel sheet and method for manufacturing same8 Sep 2026US 12,729,418 B2Posco
- Method for producing grain-oriented electrical steel sheet1 Sep 2026US 12,723,288 B2Nippon Steel Corporation
- Annealing method for hot-rolled steel strip, and method for producing electrical steel sheet using such annealing method24 Sep 2026US 2026/0286461 A1Jfe Steel Corporation
- Grain-oriented electrical steel sheet and method for forming insulating coating17 Sep 2026US 2026/0275442 A1Nippon Steel Corporation
- High-strength and low-iron-loss non-oriented electrical steel plate and manufacturing method therefor17 Sep 2026US 2026/0275466 A1Baoshan Iron & Steel Co., Ltd.
- Grain-oriented electrical steel sheet and manufacturing method of grain-oriented electrical steel sheet17 Sep 2026US 2026/0275467 A1Nippon Steel Corporation
- Grain-oriented electrical steel sheet and method for forming insulating coating17 Sep 2026US 2026/0279628 A1Nippon Steel Corporation
Most cited
By later US patents
- Method of producing non-oriented silicon steel sheets having an excellent electromagnetic property38US 4,204,890 AKawasaki Steel Corporation · 1980
- Method of producing grain-oriented magnetic steel sheet27US 5,885,371 AKawasaki Steel Corporation · 1999
- Process for producing nonoriented silicon sheet steel having excellent magnetic properties in the rolling direction26US 4,046,602 AUnited States Steel Corporation · 1977
- Electrical steel sheet suitable for compact iron core and manufacturing method therefor21US 6,562,473 B1Kawasaki Steel Corporation · 2003
- Grain oriented electrical steel having high volume resistivity and method for producing same18US 5,643,370 AArmco Inc. · 1997