C21D 9/67
Adapted for treating the charge in vacuum or special atmosphere
Official title: adapted for treating the charge in vacuum or special atmosphere
C21D9/67 (Adapted for treating the charge in vacuum or special atmosphere) appears on 25 US grants and 12 published applications in this corpus.
Search patents in C21D- Granted patents
- 25
- Published applications
- 12
- Assignees
- 20
- Inventors
- 54
- Latest grant
- 1 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- System for and method of processing waste lithium-ion battery1 Apr 2025US 12,266,770 B2Kawasaki Jukogyo Kabushiki Kaisha
- Zinc-coated steel for press hardening applications and method of production21 Jul 2020US 10,718,045 B2AK Steel Properties, Inc.
- Heat treatment method23 Aug 2016US 9,423,183 B2Mitsubishi Heavy Industries, Ltd.
- High pressure heat treatment system4 Mar 2014US 8,663,547 B2Consolidated Engineering Company, Inc.
- Diffuser for an annealing furnace23 Sep 2008US 7,427,375 B1MNP Corporation
- Motor core production method and heat treatment device used therefor27 Jul 2023US 2023/0235422 A1Daido Steel Co., Ltd.
- System for and method of processing waste lithium-ion battery5 May 2022US 2022/0140412 A1Kawasaki Jukogyo Kabushiki Kaisha
- Surface modification of stainless steels10 May 2018US 2018/0127850 A1
- Heat treatment method15 Jan 2015US 2015/0017593 A1Mitsubishi Heavy Industries, Ltd.
- Zinc-coated steel for press hardening applications and method of production20 Nov 2014US 2014/0342181 A1AK Steel Properties, Inc.
Most cited
By later US patents
- Method and apparatus for batch coil annealing metal strip8US 5,380,378 AGas Research Institute · 1995
- Method and apparatus for batch coil annealing metal strip5US 5,388,809 AGas Research Institute · 1995
- Process for prevent the formation of adhesives when annealing steel band4US 5,344,509 AMesser Griesheim GmbH · 1994
- Process of heating and cooling charges in batch-process industrial furnaces3US 4,571,273 AEbner-Industrieofenbau Ing. Josef Ebner KG · 1986
- Process for annealing ferrous wire3US 4,648,914 AThe BOC Group, Inc. · 1987