DIFF Subgroup
C10L 3/10 Working-up natural gas or synthetic natural gas
Introduced: January 1990
Full Title
Full titles differ between systems:
IPC:
Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclasses ,; Liquefied petroleum gas > Natural gas; Synthetic natural gas obtained by processes not covered by , or > Working-up natural gas or synthetic natural gas
CPC:
Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas > Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04 > Working-up natural gas or synthetic natural gas
Of 3 combined children, 0 exist in both systems.
3 codes are CPC-only extensions.
Child Classifications
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