C21D 9/562
Details
Official title: {Details}
C21D9/562 (Details) appears on 175 US grants and 153 published applications in this corpus.
Search patents in C21D- Granted patents
- 175
- Published applications
- 153
- Assignees
- 118
- Inventors
- 481
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 8 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 5 | 1 |
| 2002 | 7 | 7 |
| 2003 | 2 | 3 |
| 2004 | 5 | 2 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 3 |
| 2010 | 1 | 6 |
| 2011 | 1 | 3 |
| 2012 | 0 | 2 |
| 2013 | 3 | 7 |
| 2014 | 4 | 2 |
| 2015 | 4 | 6 |
| 2016 | 2 | 7 |
| 2017 | 3 | 9 |
| 2018 | 3 | 8 |
| 2019 | 10 | 13 |
| 2020 | 9 | 12 |
| 2021 | 6 | 15 |
| 2022 | 13 | 6 |
| 2023 | 7 | 15 |
| 2024 | 9 | 12 |
| 2025 | 10 | 6 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Steel sheet, member, and methods for producing the same26 May 2026US 12,637,730 B2Jfe Steel Corporation
- High-strength steel sheet having excellent formability and method for manufacturing thereof12 May 2026US 12,624,411 B2Posco
- Continuous annealing line, continuous hot-dip galvanizing line, and steel sheet production method10 Mar 2026US 12,571,068 B2Jfe Steel Corporation
- Surface modification of a zinc-based metal coating in a hot-dip coating process10 Feb 2026US 12,545,984 B2ThyssenKrupp Steel Europe AG
- Direct flame burner unit for furnaces for the thermo-chemical treatment of steel strips in continuous hot-dip galvanizing plants23 Dec 2025US 12,504,165 B2Tenova S. P. A.
- Hearth roll for continuous annealing furnace18 Jun 2026US 2026/0168046 A1Nippon Steel Corporation
- Jet-type direct-fired preheating system26 Mar 2026US 2026/0085374 A1Baoshan Iron & Steel Co., Ltd.
- Annealing facility, and method for manufacturing grain-oriented electromagnetic steel sheet5 Feb 2026US 2026/0035762 A1Jfe Steel Corporation
- High-speed jet and radiation combined heating device and rapid heating method thereof25 Dec 2025US 2025/0388991 A1Baoshan Iron & Steel Co., Ltd.
- Cooling device and heat treatment apparatus including the same11 Sep 2025US 2025/0281957 A1Noritake Co., Limited
Most cited
By later US patents
- Seal assembly for thermal treatment furnaces using an atmospheric gas containing hydrogen gas32US 5,693,288 ANisshin Steel Co., Ltd. · 1997
- Apparatus for producing strip of stainless steel31US 5,904,204 ANippon Steel Corporation · 1999
- Method of heat treatments of amorphous alloy ribbons27US 4,288,260 AMatsushita Electric Industrial Co., Ltd. · 1981
- Apparatus and method of continuous sintering a web material25US 6,306,336 B1USF Filtration and Separations Group, Inc. · 2001
- Hearth roll21US 5,466,208 APraxair S. T. Technology, Inc. · 1995