C23C 22/05
Chemical surface treatment of metallic material by reaction of the surface with
Official title: using aqueous solutions
C23C22/05 (Chemical surface treatment of metallic material by reaction of the surface with) appears on 2,363 US grants and 2,251 published applications in this corpus.
Search patents in C23C- Granted patents
- 2,363
- Published applications
- 2,251
- Assignees
- 999
- Inventors
- 5,374
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 30 | 0 |
| 1977 | 22 | 0 |
| 1978 | 32 | 0 |
| 1979 | 25 | 0 |
| 1980 | 18 | 0 |
| 1981 | 24 | 0 |
| 1982 | 23 | 0 |
| 1983 | 24 | 0 |
| 1984 | 21 | 0 |
| 1985 | 18 | 0 |
| 1986 | 20 | 0 |
| 1987 | 31 | 0 |
| 1988 | 23 | 0 |
| 1989 | 27 | 0 |
| 1990 | 35 | 0 |
| 1991 | 37 | 0 |
| 1992 | 34 | 0 |
| 1993 | 35 | 0 |
| 1994 | 55 | 0 |
| 1995 | 57 | 0 |
| 1996 | 53 | 0 |
| 1997 | 41 | 0 |
| 1998 | 47 | 0 |
| 1999 | 56 | 0 |
| 2000 | 54 | 0 |
| 2001 | 59 | 16 |
| 2002 | 60 | 46 |
| 2003 | 62 | 95 |
| 2004 | 63 | 83 |
| 2005 | 30 | 73 |
| 2006 | 29 | 71 |
| 2007 | 21 | 55 |
| 2008 | 22 | 63 |
| 2009 | 24 | 80 |
| 2010 | 47 | 70 |
| 2011 | 35 | 97 |
| 2012 | 50 | 82 |
| 2013 | 52 | 76 |
| 2014 | 57 | 72 |
| 2015 | 64 | 102 |
| 2016 | 64 | 105 |
| 2017 | 55 | 94 |
| 2018 | 70 | 123 |
| 2019 | 97 | 104 |
| 2020 | 81 | 122 |
| 2021 | 66 | 97 |
| 2022 | 80 | 146 |
| 2023 | 59 | 121 |
| 2024 | 101 | 100 |
| 2025 | 120 | 92 |
| 2026 | 53 | 66 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Manufacturing method for tinplate6 Oct 2026US 12,752,324 B2Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd (Cn)
- Continuous coil pretreatment process6 Oct 2026US 12,753,515 B2Arconic Technologies LLC
- Metal alloy surface modification methods and related metal alloy products with improved bond durability29 Sep 2026US 12,746,619 B2Novelis Inc.
- Surface-treated metal sheet29 Sep 2026US 12,747,505 B2Nippon Steel Corporation
- System and method of coating an automotive part with iron oxide for an electric drive unit of a vehicle29 Sep 2026US 12,747,506 B2GM Global Technology Operations LLC
- Continuous coil pretreatment process8 Oct 2026US 2026/0308766 A1Arconic Technologies LLC
- Method for the Corrosion-Protective Pretreatment of Components Comprising Surfaces of Zinc-Magnesium Hot-Dip Coated Steel8 Oct 2026US 2026/0308768 A1Henkel AG & Co. KGaA
- Method for Passivating a Metal Surface, Particularly an Aluminum Surface24 Sep 2026US 2026/0287283 A1Mahle International GmbH
- Metal sheet with zinc hydroxysulfate/zinc sulfate-based protection layer17 Sep 2026US 2026/0275562 A1
- Grain-oriented electrical steel sheet and method for forming insulating coating17 Sep 2026US 2026/0279629 A1Nippon Steel Corporation
Most cited
By later US patents
- Reactor surface passivation through chemical deactivation137US 7,118,779 B2ASM America, Inc. · 2006
- Biocompatible titanium implant130US 5,855,612 AOhta Company Limited · 1999
- 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
- Process for producing chalcogenide semiconductors95US 4,642,140 AThe United States of America as represented by the United States Department of Energy · 1987