C25D 11/02
Anodisation
C25D11/02 (Anodisation) appears on 2,196 US grants and 2,622 published applications in this corpus.
Search patents in C25D- Granted patents
- 2,196
- Published applications
- 2,622
- Assignees
- 1,252
- Inventors
- 5,921
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 35 | 0 |
| 1977 | 29 | 0 |
| 1978 | 30 | 0 |
| 1979 | 19 | 0 |
| 1980 | 25 | 0 |
| 1981 | 21 | 0 |
| 1982 | 8 | 0 |
| 1983 | 31 | 0 |
| 1984 | 37 | 0 |
| 1985 | 26 | 0 |
| 1986 | 25 | 0 |
| 1987 | 25 | 0 |
| 1988 | 11 | 0 |
| 1989 | 24 | 0 |
| 1990 | 25 | 0 |
| 1991 | 22 | 0 |
| 1992 | 34 | 0 |
| 1993 | 32 | 0 |
| 1994 | 26 | 0 |
| 1995 | 23 | 0 |
| 1996 | 12 | 0 |
| 1997 | 22 | 0 |
| 1998 | 25 | 0 |
| 1999 | 30 | 0 |
| 2000 | 24 | 0 |
| 2001 | 38 | 8 |
| 2002 | 37 | 31 |
| 2003 | 29 | 65 |
| 2004 | 43 | 74 |
| 2005 | 31 | 59 |
| 2006 | 30 | 77 |
| 2007 | 26 | 61 |
| 2008 | 25 | 61 |
| 2009 | 13 | 98 |
| 2010 | 40 | 118 |
| 2011 | 40 | 121 |
| 2012 | 42 | 100 |
| 2013 | 74 | 130 |
| 2014 | 70 | 120 |
| 2015 | 85 | 169 |
| 2016 | 85 | 167 |
| 2017 | 110 | 140 |
| 2018 | 102 | 154 |
| 2019 | 105 | 125 |
| 2020 | 123 | 116 |
| 2021 | 78 | 114 |
| 2022 | 75 | 127 |
| 2023 | 66 | 109 |
| 2024 | 75 | 116 |
| 2025 | 78 | 94 |
| 2026 | 55 | 68 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C25D 11/04Of aluminium or alloys based thereon1,572
- C25D 11/26Of refractory metals or alloys based thereon387
- C25D 11/34Of metals or alloys not provided for in groups c25d11/04 - c25d11/32266
- C25D 11/022Anodisation on selected surface areas185
- C25D 11/024Anodisation under pulsed or modulated current or potential184
- C25D 11/026Anodisation with spark discharge171
- C25D 11/30Of magnesium or alloys based thereon143
- C25D 11/32Of semiconducting materials88
Recent patents
- Heat exchanger6 Oct 2026US 12,753,336 B2Daikin Industries, Ltd.
- Alumina film structure for heat dissipation of a bare conductor under high voltage, and a method for preparing the same6 Oct 2026US 12,755,865 B2Chongqing University
- Heating apparatus, non-combusted heating device, and method for manufacturing the same22 Sep 2026US 12,745,324 B2Shenzhen Innokin Technology Co., Ltd.
- Mixed acid anodization8 Sep 2026US 12,729,452 B2Rtx Corporation
- Aluminum or aluminum alloy material, and production method therefor8 Sep 2026US 12,729,453 B2ART1 Inc.
- Metal oxide or metal nitride-coated steel fasteners8 Oct 2026US 2026/0308795 A1GM Global Technology Operations LLC
- Electrolyte for forming anodic oxide film, method of forming anodic oxide film, and anodic oxide film and member for semiconductor device manufactured thereby8 Oct 2026US 2026/0308796 A1Komico Ltd.
- Stainless steel for fuel cell separator8 Oct 2026US 2026/0312081 A1Posco
- Anodizing apparatus and anodizing method therefor1 Oct 2026US 2026/0297788 A1Toyota Jidosha Kabushiki Kaisha
- A particle mediated anodising process for white anodised surfaces1 Oct 2026US 2026/0297789 A1Cirrus Materials Science Ltd
Most cited
By later US patents
- Protective coating system for aluminum556US 5,104,514 AThe United States of America as represented by the Secretary of the Navy · 1992
- Processing system and method for chemically treating a substrate277US 6,951,821 B2Tokyo Electron Limited · 2005
- SOI substrate processing method197US 6,200,878 B1Canon Kabushiki Kaisha · 2001
- Electrochemical synthesis of quasi-periodic quantum dot and nanostructure arrays193US 5,747,180 AUniversity of Notre Dame du Lac · 1998
- Method of forming a corrosion-resistant protective coating on aluminum substrate135US 5,069,938 AAPPLIED Materials.Inc. · 1991