C23C 22/13
Containing also nitrate or nitrite anions
Official title: containing also nitrate or nitrite anions
C23C22/13 (Containing also nitrate or nitrite anions) appears on 50 US grants and 27 published applications in this corpus.
Search patents in C23C- Granted patents
- 50
- Published applications
- 27
- Assignees
- 32
- Inventors
- 165
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 5 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 1 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 0 | 2 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 0 | 3 |
| 2023 | 2 | 0 |
| 2024 | 3 | 5 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Induced formation of solid lubricant9 Dec 2025US 12,492,353 B2Tribonex AB
- Oil-well metal pipe2 Sep 2025US 12,404,727 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
- Titanium material and coated titanium material10 Dec 2024US 12,163,245 B2Nippon Steel Corporation
- Composition, and threaded connection for pipes including lubricant coating layer formed from the composition21 May 2024US 11,987,765 B2Nippon Steel Corporation
- Oil-well metal pipe9 Jul 2026US 2026/0193943 A1Nippon Steel Corporation
- Method for passivating a surface of a workpiece and apparatus for passivating workpieces23 Jan 2025US 2025/0027205 A1
- Titanium material and coated titanium material26 Dec 2024US 2024/0426018 A1Nippon Steel Corporation
- Induced Formation of Solid Lubricant21 Nov 2024US 2024/0384200 A1Tribonex AB
- Oil-well metal pipe24 Oct 2024US 2024/0352806 A1Nippon Steel Corporation
Most cited
By later US patents
- Treatment of metal parts to provide rust-inhibiting coatings by phosphating and electrophoretically depositing a siccative organic coating44US 4,165,242 AR. O. Hull & Company, Inc. · 1979
- Zinc phosphate coating compositions containing oxime accelerators34US 5,588,989 APPG Industries, Inc. · 1996
- Method for forming a chemical conversion phosphate film on the surface of steel20US 4,565,585 ANippondenso Co., Ltd. · 1986
- Process of phosphating before electroimmersion painting17US 5,236,565 AMetallgesellschaft Aktiengesellschaft · 1993
- Phosphating process of metal surface15US 4,292,096 ANippon Paint Co., Ltd. · 1981