C23C 22/23
Condensed phosphates
C23C22/23 (Condensed phosphates) appears on 31 US grants and 10 published applications in this corpus.
Search patents in C23C- Granted patents
- 31
- Published applications
- 10
- Assignees
- 26
- Inventors
- 82
- Latest grant
- 24 Oct 2023
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 3 | 0 |
| 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 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 2 |
| 2020 | 0 | 0 |
| 2021 | 2 | 0 |
| 2022 | 0 | 2 |
| 2023 | 1 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Surface-treated steel sheet24 Oct 2023US 11,795,526 B2Jfe Steel Corporation
- Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet27 Jul 2021US 11,072,861 B2Nippon Steel Corporation
- Aqueous anti-rust surface treatment composition and surface-coated metal member2 Feb 2021US 10,907,053 B2Hoden Seimitsu Kako Kenkyusyo Co., Ltd.
- Powder for powder magnetic core, and powder magnetic core20 Mar 2018US 9,922,758 B2Kobe Steel, Ltd.
- Method for producing anode active material for secondary battery, anode active material for secondary battery, method for producing anode for secondary battery, anode for secondary battery, and secondary battery6 Dec 2016US 9,515,316 B2Showa Denko K. K.
- Aqueous surface treatment agent and surface-treated metal2 Jan 2025US 2025/0003077 A1Nippon Paint Surf Chemicals Co., Ltd.
- Surface-treated steel sheet14 Apr 2022US 2022/0112579 A1Jfe Steel Corporation
- Metal coloring solution for chemical conversion treatment and method for coloring metal20 Jan 2022US 2022/0018027 A1Nippon Hyomen Kagaku Kabushiki Kaisha
- Grain-oriented electrical steel sheet and method for producing grain-oriented electrical steel sheet20 Jun 2019US 2019/0186018 A1Nippon Steel & Sumitomo Metal Corporation
- Aqueous anti-rust surface treatment composition and surface-coated metal member16 May 2019US 2019/0144688 A1Hoden Seimitsu Kako Kenkyusyo Co., Ltd.
Most cited
By later US patents
- Phosphate coating composition69US 4,168,983 A1979
- Surface treated metal material and surface treating agent40US 6,190,780 B1Nippon Steel Corporation · 2001
- Treating solution and treating method for forming protective coating films on metals23US 6,096,140 ANihon Hyomen Kagaku Kabushiki Kaisha · 2000
- Conversion coating solution for treating metal surfaces17US 4,927,472 ANihon Parkerizing Co., Ltd. · 1990
- Non-chromium pretreatment chemicals13US 6,309,477 B1Nippon Paint Co., Ltd. · 2001