C23C 22/37
Containing also hexavalent chromium compounds
Official title: containing also hexavalent chromium compounds
C23C22/37 (Containing also hexavalent chromium compounds) appears on 57 US grants and 22 published applications in this corpus.
Search patents in C23C- Granted patents
- 57
- Published applications
- 22
- Assignees
- 36
- Inventors
- 143
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 1 | 4 |
| 2022 | 1 | 1 |
| 2023 | 2 | 3 |
| 2024 | 0 | 1 |
| 2025 | 3 | 0 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cr(III) based dry-in-place coating composition for zinc coated steel6 Jan 2026US 12,516,418 B2Henkel AG & Co. KGaA
- Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet14 Oct 2025US 12,442,053 B2Jfe Steel Corporation
- Acidic treatment liquid processing apparatus, acidic treatment liquid processing method, surface treatment system, and surface treatment method29 Jul 2025US 12,371,799 B2Mitsubishi Heavy Industries, Ltd.
- Aluminum and aluminum alloy electroplated coatings29 Jul 2025US 12,371,807 B2The Boeing Company
- Aluminum and aluminum alloy electroplated coatings30 May 2023US 11,661,665 B2The Boeing Company
- Composition for treating surface of ternary hot-dip galvanized steel sheet having excelent corrosion resistance and environmental stability, ternary hot-dip galvanized steel sheet that is surface-treated using same, and method for manufacturing same18 Jun 2026US 2026/0168073 A1Noroo Coil Coatings Co., Ltd.
- Can steel sheet and method for producing same2 May 2024US 2024/0141504 A1Jfe Steel Corporation
- Grain-oriented electrical steel sheet, method for manufacturing grain-oriented electrical steel sheet, and method for evaluating grain-oriented electrical steel sheet7 Dec 2023US 2023/0392223 A1Jfe Steel Corporation
- Aluminum and aluminum alloy electroplated coatings7 Dec 2023US 2023/0392275 A1The Boeing Company
- Cr(iii) based dry-in-place coating composition for zinc coated steel23 Nov 2023US 2023/0374665 A1Henkel AG & Co. KGaA
Most cited
By later US patents
- Composition and process for treating metal39US 5,281,282 AHenkel Corporation · 1994
- Composition and process for treating metal33US 5,356,490 AHenkel Corporation · 1994
- Composition and process for treating metal30US 5,534,082 AHenkel Corporation · 1996
- Composition and process for chromating galvanized steel and like materials24US 5,091,023 AHenkel Corporation · 1992
- Metal surface treatment and aqueous solution therefor22US 5,246,507 AKao Corporation · 1993