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Is this the data you were trying to parse? https://www.cooperativepatentclassification.org/Archive.html https://www.cooperativepatentclassification.org/Archive

• apocalyptic0n3 9y ago
  Yes, but I just realized I was mistaken. The data I was talking about was the International Patent Classification. CPC was XML, IPC is HTML, and the former/now-deprecated US patent classification system was plain text. I have to deal with all three on a regular basis and have built importers for all three, and I forget which one is which. IPC can be downloaded from the link below. I needed the Valid Symbol List. Looks like they fixed the encoded JSON that was there when they first put out the new format. http://www.wipo.int/classifications/ipc/en/ITsupport/Version20180101/ http://www.wipo.int/classifications/ipc/en/ITsupport/Version...