C25D 11/22
For colouring layers
Official title: for colouring layers
C25D11/22 (For colouring layers) appears on 127 US grants and 78 published applications in this corpus.
Search patents in C25D- Granted patents
- 127
- Published applications
- 78
- Assignees
- 78
- Inventors
- 289
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 0 | 2 |
| 2005 | 3 | 5 |
| 2006 | 2 | 1 |
| 2007 | 2 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 4 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 5 |
| 2014 | 1 | 3 |
| 2015 | 2 | 5 |
| 2016 | 4 | 3 |
| 2017 | 2 | 8 |
| 2018 | 1 | 5 |
| 2019 | 1 | 9 |
| 2020 | 5 | 1 |
| 2021 | 4 | 1 |
| 2022 | 3 | 5 |
| 2023 | 0 | 8 |
| 2024 | 1 | 4 |
| 2025 | 5 | 1 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic device and method for manufacturing housing of electronic device9 Jun 2026US 12,649,978 B2Samsung Electronics Co., Ltd.
- Surface treatment method of aluminum material21 Apr 2026US 12,606,926 B2Samsung Electronics Co., Ltd.
- Electronic device including plate, plate, and method for manufacturing plate16 Dec 2025US 12,501,568 B2Samsung Electronics Co., Ltd.
- Manufacturing method of aluminum-based article with multi-angle visual color change characteristics29 Jul 2025US 12,371,809 B2Catcher Technology Co., Ltd.
- Housing of electronic device and method for manufacturing the same27 May 2025US 12,312,527 B2Samsung Electronics Co., Ltd.
- Rare earth-based electrolytic coloring method, electrolyte, and alloy product23 Apr 2026US 2026/0110104 A1Shenzhen xin mao xin industrial co., LTD.
- Techniques for matte white metallic finish of electronic devices19 Feb 2026US 2026/0049410 A1Apple Inc.
- Deep-colored housing and electronic device comprising same3 Apr 2025US 2025/0113451 A1Samsung Electronics Co., Ltd.
- Ceramic-like light metal article and method for manufacturing the same7 Nov 2024US 2024/0368797 A1Catcher Technology Co., Ltd.
- Processing method of magnesium alloy appearance part7 Nov 2024US 2024/0368798 A1Catcher Technology Co., Ltd.
Most cited
By later US patents
- Process for electrolytic coloring of the anodic oxide film on aluminum or aluminum base alloys42US 4,021,315 ASumitomo Chemical Company, Limited · 1977
- Colored anodized aluminum and electrolytic method for the manufacture of same37US 5,472,788 A1995
- Electrolytic coloring of anodized aluminium by means of optical interference effects30US 4,066,816 AAlcan Research and Development Limited · 1978
- Aluminium articles having anodic oxide coatings and methods of coloring them by means of optical interference effects29US 4,310,586 AAlcan Research and Development Limited · 1982
- Method for forming colorless or colored pattern having shade difference on an aluminum or aluminum alloy article22US 4,066,516 ANippon Light Metal Company, Ltd. · 1978