C23C 16/44 characterised by the method of coating (C23C16/04 takes precedence)
Introduced: January 1985
Title
Titles differ between systems:
IPC: characterised by the method of coating
CPC: characterised by the method of coating (C23C16/04 takes precedence)
Full Title
Full titles differ between systems:
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
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)
Of 17 combined children, 10 exist in both systems.
7 codes are CPC-only extensions.
4 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 1985.
Child Classifications
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- C23C 16/448 characterised by the method used for generating reactive gas streams, e.g. by evaporation or sublimation of precursor materials since 2000 +5 CPC IPC+CPC Available in IPC and CPC
- C23C 16/453 passing the reaction gases through burners or torches, e.g. atmospheric pressure CVD (C23C16/513 takes precedence; for flame or plasma spraying of coating material in the molten state C23C4/00) since 2000 IPC+CPC Available in IPC and CPC
- C23C 16/455 characterised by the method used for introducing gases into reaction chamber or for modifying gas flows in reaction chamber since 2000 +16 CPC IPC+CPC Available in IPC and CPC
- C23C 16/458 characterised by the method used for supporting substrates in the reaction chamber since 2000 +2 CPC IPC+CPC Available in IPC and CPC
- C23C 16/46 characterised by the method used for heating the substrate (C23C16/48, C23C16/50 take precedence) since 1985 +1 CPC IPC+CPC Available in IPC and CPC
- C23C 16/48 by irradiation, e.g. photolysis, radiolysis, particle radiation since 1985 +8 CPC IPC+CPC Available in IPC and CPC
- C23C 16/52 Controlling or regulating the coating process since 1985 IPC+CPC Available in IPC and CPC
- C23C 16/54 Apparatus specially adapted for continuous coating since 1985 +1 CPC IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C23,2013–2023, worldwide · Source: EPO PATSTAT
- APPLIED MATERIALS US 8,096
- TOKYO ELECTRON JP 3,985
- CHINESE ACADEMY OF SCIENCES 2,842
- LAM RESEARCH CORPORATION US 2,654
- TOKYO ELECTRON 2,540
- NIPPON STEEL CORPORATION JP 2,465
- JFE STEEL JP 2,368
- ASM IP HOLDING NL 2,092
- APPLIED MATERIALS 1,877
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,782
Top Applicants (CPC)
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