C21D 8/0457
With diffusion of elements
Official title: {with diffusion of elements, e.g. decarburising, nitriding}
C21D8/0457 (With diffusion of elements) appears on 41 US grants and 52 published applications in this corpus.
Search patents in C21D- Granted patents
- 41
- Published applications
- 52
- Assignees
- 25
- Inventors
- 168
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 0 | 1 |
| 2014 | 1 | 3 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 1 | 4 |
| 2018 | 4 | 2 |
| 2019 | 2 | 3 |
| 2020 | 2 | 1 |
| 2021 | 4 | 6 |
| 2022 | 2 | 4 |
| 2023 | 2 | 4 |
| 2024 | 3 | 5 |
| 2025 | 2 | 7 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Steel sheet and press-formed article16 Jun 2026US 12,655,511 B2Nippon Steel Corporation
- Steel sheet and method of manufacturing a steel sheet for packaging10 Feb 2026US 12,545,973 B2thyssenkrupp Rasselstein GmbH
- High-strength galvanized steel sheet and method for manufacturing the same20 Jan 2026US 12,529,131 B2Jfe Steel Corporation
- Outer plate component for automobile, blank sheet, manufacturing method for blank sheet, and manufacturing facility for blank sheet13 Jan 2026US 12,522,907 B2Nippon Steel Corporation
- Plated steel sheet for hot press forming having excellent impact properties after hot press forming, hot press formed member, and manufacturing methods thereof6 Jan 2026US 12,516,394 B2Posco
- Hot stamping component and manufacturing method therefor27 Aug 2026US 2026/0249342 A1Hyundai Steel Company
- Method of manufacturing a steel sheet having a multilayer crystallization structure and steel sheet with a multilayer crystallization structure30 Jul 2026US 2026/0218358 A1thyssenkrupp Rasselstein GmbH
- High strength steel strip or sheet excellent in ductility and bendability, manufacturing method thereof, car or truck component4 Jun 2026US 2026/0152817 A1Tata Steel Nederland Technology B.V.
- Plated steel sheet for hot press forming having excellent impact properties after hot press forming, hot press formed member, and manufacturing methods thereof9 Apr 2026US 2026/0098317 A1Posco
- Hot-stamped part and method for manufacturing same18 Sep 2025US 2025/0290169 A1Hyundai Steel Company
Most cited
By later US patents
- Battery can, sheet for forming battery can, and method for manufacturing sheet27US 5,576,113 AKatayama Special Industries, Ltd. · 1996
- Battery can, sheet for forming battery can, and method for manufacturing sheet12US 5,840,441 AKatayama Special Industries, Ltd. · 1998
- High strength deep drawing steel developed by reaction with ammonia11US 5,772,795 AUSX Corporation · 1998
- Method for homogenizing steel compositions6US 10,738,367 B2TerraPower, LLC · 2020
- Hot-pressed member6US 9,040,166 B2Jfe Steel Corporation · 2015