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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
C23G 1/28

with molten salts

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Cleaning or pickling metallic material with solutions or molten salts > with molten salts

CPC:

Cleaning or pickling metallic material with solutions or molten salts (with organic solvents C23G5/02) > with molten salts

IPC and CPC are identically structured here. All 3 subcodes exist in both systems.

Child Classifications

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  • C23G 1/30 using inhibitors IPC+CPC Available in IPC and CPC
  • C23G 1/32 Heavy metals IPC+CPC Available in IPC and CPC
  • C23G 1/34 Light metals IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class C23,2013–2023, worldwide · Source: EPO PATSTAT

  1. APPLIED MATERIALS US 8,096
  2. TOKYO ELECTRON JP 3,985
  3. CHINESE ACADEMY OF SCIENCES 2,842
  4. LAM RESEARCH CORPORATION US 2,654
  5. TOKYO ELECTRON 2,540
  6. NIPPON STEEL CORPORATION JP 2,465
  7. JFE STEEL JP 2,368
  8. ASM IP HOLDING NL 2,092
  9. APPLIED MATERIALS 1,877
  10. POSCO (POHANG IRON AND STEEL COMPANY) KR 1,782

Top Applicants (CPC)

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