C25D 3/08
Deposition of black chromium
Official title: Deposition of black chromium {, e.g. hexavalent chromium, CrVI}
C25D3/08 (Deposition of black chromium) appears on 53 US grants and 63 published applications in this corpus.
Search patents in C25D- Granted patents
- 53
- Published applications
- 63
- Assignees
- 40
- Inventors
- 145
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 5 |
| 2018 | 2 | 3 |
| 2019 | 5 | 7 |
| 2020 | 11 | 9 |
| 2021 | 5 | 5 |
| 2022 | 7 | 3 |
| 2023 | 2 | 6 |
| 2024 | 3 | 10 |
| 2025 | 5 | 5 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Antiviral environment-friendly composite plating layer, preparation method therefor, and antiviral environment-friendly product6 Oct 2026US 12,751,456 B2Jomoo Kitchen&Bath Co., Ltd.
- High heat-resistant antioxidant solutions for lithium battery copper foil14 Apr 2026US 12,601,079 B2Nan Ya Plastics Corporation
- Method for coating a plumbing component24 Mar 2026US 12,584,206 B2Grohe AG
- Piston ring with hard chromium layer and improved running-in behaviour14 Oct 2025US 12,442,100 B2Federal-Mogul Burscheid GmbH
- Method of applying nano coating to stainless steel8 Apr 2025US 12,270,110 B12H PLUS Co., Ltd.
- High heat-resistant antioxidant solutions for lithium battery copper foil25 Sep 2025US 2025/0297397 A1Nan Ya Plastics Corporation
- Surface-treated steel sheet and method of producing same18 Sep 2025US 2025/0290218 A1Jfe Steel Corporation
- Method of producing anti-scaling and anti-galling coating on an internal surface of a tubular member14 Aug 2025US 2025/0257839 A1Baker Hughes Oilfield Operations LLC
- Method for determining the height of a foam blanket on an electroplating composition8 May 2025US 2025/0146168 A1Atotech Deutschland GmbH
- Surface treatment method of copper foil, antioxidant copper foil, and cathode of lithium battery27 Mar 2025US 2025/0101625 A1Nan Ya Plastics Corporation
Most cited
By later US patents
- Non-uniform etching of anode foil to produce higher capacitance gain without sacrificing foil strength38US 6,736,956 B1Pacesetter, Inc. · 2004
- Method for producing chromium plated parts, and chromium plating apparatus13US 10,851,464 B1Hitachi Automotive Systems, Ltd. · 2020
- Electrodeposition of black chromium7US 4,196,063 AInternational Lead Zinc Research Organization, Inc. · 1980
- Optically black pliable foils7US 4,894,125 AMartin Marietta Corporation · 1990
- Copper foil with excellent adhesion4US 10,622,637 B1Chang Chun Petrochemical Co., Ltd. · 2020