C21D 6/004
Containing cr and ni
Official title: {containing Cr and Ni}
C21D6/004 (Containing cr and ni) appears on 1,167 US grants and 1,888 published applications in this corpus.
Search patents in C21D- Granted patents
- 1,167
- Published applications
- 1,888
- Assignees
- 507
- Inventors
- 3,442
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 6 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 8 | 8 |
| 2003 | 9 | 13 |
| 2004 | 10 | 17 |
| 2005 | 7 | 7 |
| 2006 | 0 | 11 |
| 2007 | 2 | 10 |
| 2008 | 5 | 20 |
| 2009 | 2 | 21 |
| 2010 | 12 | 30 |
| 2011 | 14 | 31 |
| 2012 | 20 | 31 |
| 2013 | 11 | 35 |
| 2014 | 15 | 45 |
| 2015 | 24 | 128 |
| 2016 | 42 | 147 |
| 2017 | 48 | 90 |
| 2018 | 79 | 145 |
| 2019 | 104 | 153 |
| 2020 | 84 | 134 |
| 2021 | 110 | 133 |
| 2022 | 99 | 152 |
| 2023 | 99 | 162 |
| 2024 | 87 | 133 |
| 2025 | 122 | 117 |
| 2026 | 80 | 114 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Forged steel roll for cold rolling6 Oct 2026US 12,752,325 B2Nippon Steel Corporation
- Method for producing a steel part and steel part6 Oct 2026US 12,753,462 B2ArcelorMittal
- Bearing part22 Sep 2026US 12,742,476 B2Ntn Corporation
- Method of producing ferritic stainless steel sheet8 Sep 2026US 12,728,624 B2Jfe Steel Corporation
- Method for producing a steel sheet having excellent processability before hot forming8 Sep 2026US 12,729,413 B2ArcelorMittal
- Coated steel sheet, member, and methods for producing the same1 Oct 2026US 2026/0297713 A1Jfe Steel Corporation
- Production and preparation method of carburized gear shaft bars by means of converter process24 Sep 2026US 2026/0286458 A1Bengang Steel Plates Co., Ltd.
- Steel sheet, member, and methods for producing the same24 Sep 2026US 2026/0286459 A1Jfe Steel Corporation
- High-strength stainless steel seamless pipe for oil wells24 Sep 2026US 2026/0286485 A1Jef Steel Corporation
- Low-alloy steel24 Sep 2026US 2026/0286488 A1ELSmidth A/S
Most cited
By later US patents
- Methods of forming steel46US 6,258,185 B1Bechtel BWXT Idaho, LLC · 2001
- Iron-based alloys and methods of making and use thereof42US 9,334,547 B2L. E. Jones Company · 2016
- High-strength austenitic stainless steel strip having excellent flatness and method of manufacturing same38US 6,764,555 B2Nisshin Steel Co., Ltd. · 2004
- Iron-based alloys and methods of making and use thereof38US 9,458,743 B2L. E. Jones Company · 2016
- High performance iron-based alloys for engine valvetrain applications and methods of making and use thereof37US 10,677,109 B2I. E. Jones Company · 2020