C23C 22/02
Chemical surface treatment of metallic material by reaction of the surface with
Official title: using non-aqueous solutions
C23C22/02 (Chemical surface treatment of metallic material by reaction of the surface with) appears on 162 US grants and 174 published applications in this corpus.
Search patents in C23C- Granted patents
- 162
- Published applications
- 174
- Assignees
- 155
- Inventors
- 525
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 6 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 5 | 1 |
| 2003 | 2 | 4 |
| 2004 | 3 | 4 |
| 2005 | 1 | 7 |
| 2006 | 1 | 2 |
| 2007 | 2 | 9 |
| 2008 | 2 | 9 |
| 2009 | 2 | 6 |
| 2010 | 3 | 11 |
| 2011 | 6 | 7 |
| 2012 | 7 | 8 |
| 2013 | 4 | 6 |
| 2014 | 4 | 6 |
| 2015 | 10 | 9 |
| 2016 | 6 | 9 |
| 2017 | 7 | 8 |
| 2018 | 2 | 6 |
| 2019 | 9 | 9 |
| 2020 | 8 | 9 |
| 2021 | 6 | 8 |
| 2022 | 4 | 4 |
| 2023 | 3 | 7 |
| 2024 | 6 | 10 |
| 2025 | 7 | 6 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Steel sheet with excellent phosphatability and manufacturing method therefor6 Oct 2026US 12,753,458 B2Posco
- Thiol-ene based beta-diketone primers for adhesion to metal17 Feb 2026US 12,553,135 B23M Innovative Properties Company
- Pretreatment method of aluminum alloy coil20 Jan 2026US 12,529,146 B2Shanghai Mingjie Chem-Technologies Co., Ltd.
- Method for producing layered product13 Jan 2026US 12,521,792 B2Sumitomo Chemical Company, Limited
- Aqueous post treatment composition and method for corrosion protection21 Oct 2025US 12,448,689 B2Atotech Deutschland GmbH
- Marking method and semiconductor package27 Aug 2026US 2026/0255979 A1Kioxia Corporation
- Fire retardant material30 Jul 2026US 2026/0217892 A1King Fahd University of Petroleum and Minerals
- Chromium plated component and method for producing same2 Jul 2026US 2026/0185236 A1Jcu Corporation
- Impregnation liquid, method of treatment with such an impregnation liquid, and treated part obtained25 Jun 2026US 2026/0175351 A1Hydromecanique Et Frottement
- Liquid-phase deposition of thin films11 Jun 2026US 2026/0159954 A1Coreshell Technologies, Incorporated
Most cited
By later US patents
- Method of providing corrosion protection75US 5,853,797 ALucent Technologies Inc. · 1998
- Modification of the properties of metals70US 4,690,715 AAmerican Telephone and Telegraph Company, AT&T Bell Laboratories · 1987
- Conversion of aluminum-mercury amalgam and incidental mercury in contact with aluminum alloy surfaces to harmless compounds64US 4,830,829 AMobil Oil Corporation · 1989
- Alcohol-based precursor solutions for producing metal phosphate materials and coating50US 6,036,762 A2000
- Extraction of metals in carbon dioxide and chelating agents therefor45US 5,641,887 AUniversity of Pittsburgh · 1997