C23C 22/182
Containing also zinc cations
Official title: {containing also zinc cations}
C23C22/182 (Containing also zinc cations) appears on 65 US grants and 51 published applications in this corpus.
Search patents in C23C- Granted patents
- 65
- Published applications
- 51
- Assignees
- 35
- Inventors
- 211
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 4 |
| 2003 | 7 | 3 |
| 2004 | 3 | 5 |
| 2005 | 1 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 0 | 1 |
| 2017 | 0 | 2 |
| 2018 | 1 | 7 |
| 2019 | 3 | 2 |
| 2020 | 2 | 1 |
| 2021 | 1 | 3 |
| 2022 | 2 | 4 |
| 2023 | 0 | 4 |
| 2024 | 0 | 0 |
| 2025 | 4 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for producing a flat steel product having a protective zinc-based metal layer and a phosphating layer produced on a surface of the protective metal layer and flat steel product of this type19 May 2026US 12,630,929 B2ThyssenKrupp Steel Europe AG
- Method for applying a conversion coating with an aquous pickling composition comprising an aminophosphonic acid and a polymer24 Mar 2026US 12,584,229 B2Chemetall GmbH
- Phosphate-free cleaner for metallic surfaces with reduced pickling erosion4 Nov 2025US 12,460,304 B2Chemetall GmbH
- Phosphate coating which can be substantially free of hexavalent chromium and methods of making the same22 Jul 2025US 12,365,989 B2Hamilton Sundstrand Corporation
- Alternative composition and alternative method for effectively phosphating metal surfaces21 Jan 2025US 12,203,173 B2Chemetall GmbH
- Phosphonate-free, aqueous pickling compositions and their use27 Aug 2026US 2026/0250850 A1Chemetall GmbH
- Metal-plastic hybrid materials with steel and/or zinc and/or alloys thereof as metal component12 Mar 2026US 2026/0070271 A1Chemetall GmbH
- Method of pre-treating metallic substrates5 Feb 2026US 2026/0035802 A1Chemetall GmbH
- Method for treating a part made of iron alloy for improving the anti-corrosion properties thereof29 May 2025US 2025/0171906 A1Hydromecanique Et Frottement
- Surface Adjuster for Zinc Phosphate Chemical Conversion Treatment20 Feb 2025US 2025/0059647 A1Nihon Parkerizing Co., Ltd.
Most cited
By later US patents
- Phosphate coating composition and method of applying a zinc-nickel phosphate coating43US 4,793,867 AChemfil Corporation · 1988
- Zinc phosphate coating compositions containing oxime accelerators34US 5,588,989 APPG Industries, Inc. · 1996
- Zinc phosphate conversion coating and process19US 5,261,973 AHenkel Corporation · 1993
- Phosphate coating composition and method of applying a zinc-nickel-manganese phosphate coating18US 5,238,506 AChemfil Corporation · 1993
- Process of phosphating before electroimmersion painting17US 5,236,565 AMetallgesellschaft Aktiengesellschaft · 1993