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CPC Subgroup
C23F 13/08

Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto

Full Title

Inhibiting corrosion of metals by anodic or cathodic protection > cathodic; Selection of conditions, parameters or procedures for cathodic protection, e.g. of electrical conditions > Constructional parts, or assemblies of cathodic-protection apparatus > Electrodes specially adapted for inhibiting corrosion by cathodic protection; Manufacture thereof; Conducting electric current thereto

6 direct subcodes

Child Classifications

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  • C23F 13/10 Electrodes characterised by the structure (C23F13/16 takes precedence)
  • C23F 13/16 Electrodes characterised by the combination of the structure and the material
  • C23F 13/18 Means for supporting electrodes
  • C23F 13/20 Conducting electric current to electrodes
  • C23F 13/22 Monitoring arrangements therefor

Top Applicants

Top 10 applicants by patent filingsfor class C23, 2013–2023, worldwide · Source: EPO PATSTAT

  1. APPLIED MATERIALS US 10,596
  2. TOKYO ELECTRON JP 5,229
  3. LAM RESEARCH CORPORATION US 3,622
  4. NIPPON STEEL CORPORATION JP 3,171
  5. JFE STEEL JP 3,128
  6. ASM IP HOLDING NL 2,722
  7. ARCELORMITTAL LU 2,481
  8. TOKYO ELECTRON 2,359
  9. APPLIED MATERIALS 2,284
  10. CHINESE ACADEMY OF SCIENCES 2,110