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ep30lon
Last seen: 11/16/2022 - 15:14
Joined: 10/25/2022 - 20:43
Clarifyig "cpc_sequence" and "cpc_symbol_position"

Dear Patent Community,

I was wondering what is the specific interpretation of the order in which the CPC class appears in the patent file (what is represented in the datasets as "CPC_sequence"). Does it mean when the CPC sequence number is lower, the patent is more relevant to that CPC class? After doing a bit of search, my understanding is that in the previous classification method, "USPC," the sequence in which the classes appeared mattered, such that the primary classification appeared in the first sequence (compared to the other classifications that were peripheral classifications). But is that the case for CPC as well?