C23C 22/70
Chemical surface treatment of metallic material by reaction of the surface with
Official title: using melts
C23C22/70 (Chemical surface treatment of metallic material by reaction of the surface with) appears on 27 US grants and 17 published applications in this corpus.
Search patents in C23C- Granted patents
- 27
- Published applications
- 17
- Assignees
- 25
- Inventors
- 88
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 2 |
| 2019 | 0 | 0 |
| 2020 | 1 | 2 |
| 2021 | 1 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Methods and materials systems for enhancing corrosion resistance of solid materials and corrosion resistant devices made therefrom25 Nov 2025US 12,480,214 B2Purdue Research Foundation
- Lithium lanthanum zirconate thin films7 Nov 2023US 11,807,944 B2Arizona Board of Regents on behalf of Arizona State University
- Lithium lanthanum zirconate thin films8 Mar 2022US 11,268,196 B2Arizona Board of Regents on behalf of Arizona State University
- Hollow airfoil construction utilizing functionally graded materials11 May 2021US 11,000,899 B2Raytheon Technologies Corporation
- Conversion coating and method of making9 Jun 2020US 10,676,828 B2Saint-Gobain Performance Plastics Corporation
- Metal silicide and method for producing same, alloy material and method for producing same, heating element, and electric resistor5 Jun 2025US 2025/0178910 A1Tohoku University
- Surface-treated galvanized steel sheet22 May 2025US 2025/0161982 A1Jfe Steel Corporation
- Lithium lanthanum zirconate thin films15 Feb 2024US 2024/0052492 A1
- Lithium lanthanum zirconate thin films16 Jun 2022US 2022/0186380 A1Arizona Board of Regents on behalf of Arizona State University
- Lithium lanthanum zirconate thin films30 Apr 2020US 2020/0131643 A1Arizona Board of Regents on behalf of Arizona State University
Most cited
By later US patents
- Processes for producing improved wear resistant coatings on zirconium shapes27US 4,671,824 ATeledyne Industries, Inc. · 1987
- Process for converting lead and lead oxides to barium metaplumbate18US 5,507,842 AAT&T Corp. · 1996
- Process for improving the corrosion resistance of ferrous metal parts16US 4,448,611 ACentre Stephanois de Recherches Mecaniques Hydromecanique et Frottement · 1984
- Process for increasing the corrosion resistance of nitrided structural parts made of iron material12US 4,292,094 ADegussa AG · 1981
- Anticorrosion treatment of galvanized rebars9US 4,110,120 AW. R. Grace & Co. · 1978