C23C 22/17
Containing also organic acids
Official title: containing also organic acids
C23C22/17 (Containing also organic acids) appears on 30 US grants and 30 published applications in this corpus.
Search patents in C23C- Granted patents
- 30
- Published applications
- 30
- Assignees
- 33
- Inventors
- 127
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 0 | 4 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 2 | 2 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 3 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 0 | 1 |
| 2019 | 1 | 2 |
| 2020 | 2 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 1 |
| 2024 | 1 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Non-oriented electrical steel sheet and surface treatment agent for non-oriented electrical steel sheet9 Dec 2025US 12,492,477 B2Nippon Steel Corporation
- Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same10 Dec 2024US 12,163,232 B2Jfe Steel Corporation
- Method of tin-plating copper alloy for electric or electronic parts and automobile parts and tin-plating material of copper alloy manufactured therefrom3 Jan 2023US 11,542,606 B2Poongsan Corporation
- Treatment liquid for black trivalent chromium conversion coating, trivalent chromium-containing water-soluble liquid for finishing treatment, and treatment method of metal substrate6 Apr 2021US 10,968,520 B2Nippon Hyomen Kagaku Kabushiki Kaisha
- Two-step sealing of anodized aluminum coatings1 Sep 2020US 10,760,164 B2Hamilton Sundstrand Corporation
- Surface Adjuster for Zinc Phosphate Chemical Conversion Treatment20 Feb 2025US 2025/0059647 A1Nihon Parkerizing Co., Ltd.
- Surface treatment method of metal powder and surface passivated metal powder12 Sep 2024US 2024/0300013 A1Hengdian Group Dmegc Magnetics Co., Ltd
- Resource-saving method for zinc phosphating of a metal surface8 Jun 2023US 2023/0175138 A1Henkel AG & Co. KGaA
- Non-oriented electrical steel sheet and surface treatment agent for non-oriented electrical steel sheet27 Oct 2022US 2022/0341043 A1Nippon Steel Corporation
- Treatment agent for chromium-free insulating coating formation, insulation-coated grain-oriented electrical steel sheet, and method for manufacturing the same17 Feb 2022US 2022/0049359 A1Jfe Steel Corporation
Most cited
By later US patents
- Ductile polyelectrolyte macromolecule-complexed zinc phosphate conversion crystal pre-coatings and topcoatings embodying a laminate10US 4,659,395 AThe United States of America as represented by the United States Department of Energy · 1987
- Process for the treatment by chemical conversion of substrates of zinc or of one of its alloys, concentrate and bath used for performing this process9US 4,670,066 ACompagnie Francaise de Produits Industriels · 1987
- Aqueous phosphating composition and process for metal surfaces9US 6,179,934 B2Henkel Corporation · 2001
- Zinc-nickel phosphate conversion coating composition and process8US 5,000,799 ANihon Parkerizing Co., Ltd. · 1991
- Phosphate conversion coating accelerators7US 4,680,064 AGerhard Collardin GmbH · 1987