C25D 5/42
Of light metals
Official title: of light metals
C25D5/42 (Of light metals) appears on 176 US grants and 174 published applications in this corpus.
Search patents in C25D- Granted patents
- 176
- Published applications
- 174
- Assignees
- 164
- Inventors
- 521
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 0 | 0 |
| 1978 | 12 | 0 |
| 1979 | 7 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 1 |
| 2002 | 4 | 7 |
| 2003 | 3 | 7 |
| 2004 | 4 | 6 |
| 2005 | 4 | 5 |
| 2006 | 3 | 10 |
| 2007 | 2 | 5 |
| 2008 | 3 | 1 |
| 2009 | 0 | 3 |
| 2010 | 2 | 7 |
| 2011 | 1 | 7 |
| 2012 | 1 | 8 |
| 2013 | 5 | 6 |
| 2014 | 5 | 12 |
| 2015 | 6 | 12 |
| 2016 | 3 | 15 |
| 2017 | 6 | 10 |
| 2018 | 8 | 11 |
| 2019 | 10 | 10 |
| 2020 | 5 | 9 |
| 2021 | 3 | 3 |
| 2022 | 4 | 4 |
| 2023 | 2 | 4 |
| 2024 | 2 | 6 |
| 2025 | 3 | 4 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrolytic coating for aluminum components with weld joints7 Apr 2026US 12,595,873 B2Hamilton Sundstrand Corporation
- Etchant and method of surface treatment of aluminum or aluminum alloy28 Oct 2025US 12,454,760 B2C. Uyemura & Co., Ltd.
- Multilayer corrosion system9 Sep 2025US 12,410,525 B2MacDermid, Incorporated
- Process for low-cost tempering of aluminum casting15 Apr 2025US 12,276,009 B2Magna International Inc.
- Roughened plated sheet1 Oct 2024US 12,104,271 B2Toyo Kohan Co.Ltd
- Aluminum matrix composite material and preparation method therefor, and electronic device2 Jul 2026US 2026/0185258 A1Huawei Technologies Co., Ltd.
- Process for low-cost tempering of aluminum casting26 Jun 2025US 2025/0207225 A1
- Method for processing frameless shell materials10 Apr 2025US 2025/0114887 A1Shenzhen Futaixin Technology Co., Ltd
- Device for Printing to a Recording Medium30 Jan 2025US 2025/0034716 A1Canon Production Printing Holding B. V.
- Cosmetic finish for aluminum alloys9 Jan 2025US 2025/0011914 A1Apple Inc.
Most cited
By later US patents
- Coating aluminum with a strippable copper deposit66US 3,969,199 AGould Inc. · 1976
- Cleaning aluminum workpieces58US 5,997,721 AAlcan International Limited · 1999
- Method of plating and pretreating aluminium workpieces49US 6,846,401 B2Corus Aluminium Walzprodukte GmbH · 2005
- Methods of coating and surface finishing articles made of metals and their alloys47US 3,969,195 ASiemens Aktiengesellschaft · 1976
- Process of mechanically shaping metal articles35US 4,148,204 ASiemens Aktiengesellschaft · 1979