C21D 8/12
During manufacturing of articles with special electromagnetic properties
Official title: during manufacturing of articles with special electromagnetic properties
C21D8/12 (During manufacturing of articles with special electromagnetic properties) appears on 1,436 US grants and 1,445 published applications in this corpus.
Search patents in C21D- Granted patents
- 1,436
- Published applications
- 1,445
- Assignees
- 266
- Inventors
- 2,150
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 26 | 0 |
| 1977 | 10 | 0 |
| 1978 | 13 | 0 |
| 1979 | 7 | 0 |
| 1980 | 12 | 0 |
| 1981 | 15 | 0 |
| 1982 | 14 | 0 |
| 1983 | 12 | 0 |
| 1984 | 13 | 0 |
| 1985 | 20 | 0 |
| 1986 | 16 | 0 |
| 1987 | 18 | 0 |
| 1988 | 18 | 0 |
| 1989 | 16 | 0 |
| 1990 | 35 | 0 |
| 1991 | 29 | 0 |
| 1992 | 36 | 0 |
| 1993 | 23 | 0 |
| 1994 | 16 | 0 |
| 1995 | 21 | 0 |
| 1996 | 19 | 0 |
| 1997 | 28 | 0 |
| 1998 | 25 | 0 |
| 1999 | 24 | 0 |
| 2000 | 23 | 0 |
| 2001 | 27 | 5 |
| 2002 | 34 | 26 |
| 2003 | 30 | 26 |
| 2004 | 19 | 17 |
| 2005 | 12 | 16 |
| 2006 | 8 | 10 |
| 2007 | 10 | 6 |
| 2008 | 14 | 14 |
| 2009 | 7 | 30 |
| 2010 | 10 | 26 |
| 2011 | 19 | 24 |
| 2012 | 24 | 32 |
| 2013 | 12 | 58 |
| 2014 | 18 | 52 |
| 2015 | 20 | 73 |
| 2016 | 27 | 63 |
| 2017 | 45 | 54 |
| 2018 | 50 | 74 |
| 2019 | 47 | 70 |
| 2020 | 55 | 79 |
| 2021 | 69 | 81 |
| 2022 | 74 | 153 |
| 2023 | 66 | 101 |
| 2024 | 90 | 126 |
| 2025 | 100 | 116 |
| 2026 | 60 | 113 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Annealing separator composition for grain- oriented electrical steel sheet, grain-oriented electrical steel sheet, and method for producing grain-oriented electrical steel sheet6 Oct 2026US 12,753,457 B2Posco
- 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
- Powder for annealing separator and method of producing same, and method of producing grain-oriented electrical steel sheet8 Sep 2026US 12,729,410 B2Jfe Steel Corporation
- Double-oriented electrical steel sheet, and method for producing same8 Sep 2026US 12,729,411 B2Posco
- Non-oriented electrical steel plate with high magnetic induction and manufacturing method thereof8 Oct 2026US 2026/0308707 A1Baoshan Iron & Steel Co., Ltd.
- 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
Most cited
By later US patents
- Magnetically coded device145US 5,631,093 AGeneral Motors Corporation · 1997
- Structures having enhanced biaxial texture and method of fabricating same110US 5,741,377 AMartin Marietta Energy Systems, Inc. · 1998
- Structures having enhanced biaxial texture and method of fabricating same90US 5,739,086 ALockheed Martin Energy Systems, Inc. · 1998
- Structures having enhanced biaxial texture and method of fabricating same80US 5,898,020 A1999
- High Tc YBCO superconductor deposited on biaxially textured Ni substrate80US 5,968,877 ALockheed Martin Energy Research Corporation · 1999