C23C 2/28
Thermal after-treatment
Official title: Thermal after-treatment, e.g. treatment in oil bath
C23C2/28 (Thermal after-treatment) appears on 1,078 US grants and 1,517 published applications in this corpus.
Search patents in C23C- Granted patents
- 1,078
- Published applications
- 1,517
- Assignees
- 181
- Inventors
- 1,679
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 5 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 7 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 3 |
| 2002 | 7 | 4 |
| 2003 | 9 | 14 |
| 2004 | 10 | 11 |
| 2005 | 8 | 6 |
| 2006 | 2 | 7 |
| 2007 | 3 | 6 |
| 2008 | 2 | 11 |
| 2009 | 2 | 24 |
| 2010 | 5 | 31 |
| 2011 | 13 | 37 |
| 2012 | 12 | 38 |
| 2013 | 14 | 40 |
| 2014 | 29 | 71 |
| 2015 | 39 | 67 |
| 2016 | 33 | 62 |
| 2017 | 53 | 81 |
| 2018 | 51 | 85 |
| 2019 | 74 | 98 |
| 2020 | 74 | 112 |
| 2021 | 86 | 80 |
| 2022 | 93 | 101 |
| 2023 | 81 | 124 |
| 2024 | 96 | 159 |
| 2025 | 124 | 124 |
| 2026 | 84 | 121 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aluminum alloy-plated steel sheet having excellent workability and corrosion resistance and method for manufacturing same6 Oct 2026US 12,753,479 B2Posco
- Metal-coated steel strip29 Sep 2026US 12,747,489 B2Bluescope Steel Limited
- Steel sheet for hot press formed member22 Sep 2026US 12,741,447 B2Posco
- Method for manufacturing hot-dip galvanized steel sheet, and steel sheet and vehicle component22 Sep 2026US 12,742,222 B2Baoshan Iron & Steel Co., Ltd.
- Steel sheet, coated steel sheet, method for producing hot-rolled steel sheet, method for producing cold-rolled full hard steel sheet, method for producing heat-treated steel sheet, method for producing steel sheet, and method for producing coated steel sheet15 Sep 2026US 12,735,759 B2Jfe Steel Corporation
- Plated steel material8 Oct 2026US 2026/0308723 A1Nippon Steel Corporation
- Hydrogen induced cracking-resistant cold-rolled hot-dip galvanized ultra-high-strength dual-phase steel and manufacturing method therefor8 Oct 2026US 2026/0308732 A1Baoshan Iron & Steel Co., Ltd.
- Coated steel sheet, member, and methods for producing the same1 Oct 2026US 2026/0297713 A1Jfe Steel Corporation
- Steel sheet and plated steel sheet1 Oct 2026US 2026/0297714 A1Nippon Steel Corporation
- Steel sheet and manufacturing method thereof1 Oct 2026US 2026/0297715 A1Posco
Most cited
By later US patents
- Process for the manufacture of a part with very high mechanical properties, formed by stamping of a strip of rolled steel sheet and more particularly hot rolled and coated50US 6,564,604 B2Unisor · 2003
- Shaped catalyst and process for its production39US 4,188,309 ADeutsche Gold- und Silber-Scheideanstalt vormals Roessler · 1980
- Zn-Al-Mg-Si-alloy plated steel product having excellent corrosion resistance and method for preparing the same37US 6,635,359 B1Daido Steel Sheet Corporation · 2003
- Hot pressing method for high strength member using steel sheet and hot pressed parts33US 7,867,344 B2Nippon Steel Corporation · 2011
- Coated steel sheet and method for manufacturing the same32US 6,610,422 B1NKK Corporation · 2003