C23C 22/56
Treatment of aluminium or alloys based thereon
C23C22/56 (Treatment of aluminium or alloys based thereon) appears on 171 US grants and 171 published applications in this corpus.
Search patents in C23C- Granted patents
- 171
- Published applications
- 171
- Assignees
- 114
- Inventors
- 478
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 4 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 7 | 0 |
| 2002 | 7 | 7 |
| 2003 | 4 | 6 |
| 2004 | 7 | 7 |
| 2005 | 2 | 4 |
| 2006 | 4 | 2 |
| 2007 | 3 | 6 |
| 2008 | 1 | 2 |
| 2009 | 0 | 4 |
| 2010 | 2 | 2 |
| 2011 | 1 | 6 |
| 2012 | 5 | 5 |
| 2013 | 5 | 2 |
| 2014 | 3 | 5 |
| 2015 | 1 | 6 |
| 2016 | 3 | 5 |
| 2017 | 1 | 2 |
| 2018 | 8 | 16 |
| 2019 | 7 | 16 |
| 2020 | 10 | 9 |
| 2021 | 3 | 8 |
| 2022 | 6 | 8 |
| 2023 | 5 | 18 |
| 2024 | 6 | 12 |
| 2025 | 18 | 8 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Continuous coil pretreatment process6 Oct 2026US 12,753,515 B2Arconic Technologies LLC
- Surface modifying method for galvanized steel sheet21 Jul 2026US 12,686,909 B2Posco
- Roll coating-based preparation methods for adhesive bonding of aluminum alloys, and products relating to the same9 Jun 2026US 12,649,170 B2Arconic Technologies LLC
- Aluminum alloy articles exhibiting improved bond durability and methods of making the same17 Mar 2026US 12,577,679 B2Novelis Inc.
- Pretreatment method of aluminum alloy coil20 Jan 2026US 12,529,146 B2Shanghai Mingjie Chem-Technologies Co., Ltd.
- Continuous coil pretreatment process8 Oct 2026US 2026/0308766 A1Arconic Technologies LLC
- Aluminum Material or Aluminum Alloy Material Provided With Coating Film, Method for Producing Same, and Aqueous Surface Treatment Agent16 Jul 2026US 2026/0201563 A1Nihon Parkerizing Co., Ltd.
- Compositions, systems and methods for treating a substrate4 Jun 2026US 2026/0152858 A1PRC-DeSoto International, Inc.
- Systems and methods for treating a metal substrate26 Feb 2026US 2026/0055512 A1PRC-DeSoto International, Inc.
- Pretreated aluminum alloy tab stock19 Feb 2026US 2026/0048896 A1Novelis Inc.
Most cited
By later US patents
- Generation of compact alumina passivation layers on aluminum plasma equipment components108US 9,903,020 B2APPLIED Materials.Inc. · 2018
- Conditioned semiconductor system parts107US 9,885,117 B2APPLIED Materials.Inc. · 2018
- Method of preventing corrosion of metals using silanes78US 5,750,197 AUniversity of Cincinnati · 1998
- Non-toxic corrosion resistant conversion coating for aluminum and aluminum alloys and the process for making the same57US 5,221,371 ALockheed Corporation · 1993
- Rare earth coating process for aluminum alloys51US 5,362,335 AGeneral Motors Corporation · 1994