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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
C23C 16/50

using electric discharges

Introduced: January 1985

Full Title

Full titles differ between systems:

IPC:

Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes > characterised by the method of coating > using electric discharges

CPC:

Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes (reactive sputtering or vacuum evaporation C23C14/00) > characterised by the method of coating (C23C16/04 takes precedence) > using electric discharges

IPC and CPC are identically structured here. All 6 subcodes exist in both systems.

1 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 2000.

Child Classifications

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  • C23C 16/503 using DC or AC discharges since 2000 IPC+CPC Available in IPC and CPC
  • C23C 16/511 using microwave discharges since 2000 IPC+CPC Available in IPC and CPC
  • C23C 16/513 using plasma jets since 2000 IPC+CPC Available in IPC and CPC
  • C23C 16/515 using pulsed discharges since 2000 IPC+CPC Available in IPC and CPC
  • C23C 16/517 using a combination of discharges covered by two or more of groups C23C16/503 - C23C16/515 since 2000 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