CPC Main Group
C23C 10/00 Solid state diffusion of only metal elements or silicon into metallic material surfaces
6 direct subcodes
Child Classifications
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- C23C 10/02 Pretreatment of the material to be coated (C23C10/04 takes precedence)
- C23C 10/04 Diffusion into selected surface areas, e.g. using masks
- C23C 10/06 using gases
- C23C 10/18 using liquids, e.g. salt baths, liquid suspensions
- C23C 10/28 using solids, e.g. powders, pastes
- C23C 10/60 After-treatment
Top Applicants
Top 10 applicants by patent filingsfor class C23, 2013–2023, worldwide · Source: EPO PATSTAT
- APPLIED MATERIALS US 10,596
- TOKYO ELECTRON JP 5,229
- LAM RESEARCH CORPORATION US 3,622
- NIPPON STEEL CORPORATION JP 3,171
- JFE STEEL JP 3,128
- ASM IP HOLDING NL 2,722
- ARCELORMITTAL LU 2,481
- TOKYO ELECTRON 2,359
- APPLIED MATERIALS 2,284
- CHINESE ACADEMY OF SCIENCES 2,110