I´m new in research in patent classificacions and need to get the CCL: Current US Classification, CPC: Current CPC Classification, CPCL:Current CPC Classification Class and ICL: International Classification. of various patent numbers i used to get them from see the forest, but found out that they had a lot of errors, furthermore I can´t find the bulk database for that information, the anwers that i looked up in this page are good but the links no longer work. Can anyone give me a way to solve this problem ?

  • Can you please explain “I used to get them from see the forest”?
    – Eric S
    Apr 22 at 13:22
  • It is a patent analytic site with an odd name see-the-forest.com/G4/Main.act
    – George White
    May 12 at 0:51
  • You posted a follow up question as an answer. That isn’t how this site works. New questions need to be posted as questions.
    – Eric S
    May 13 at 1:04

The Lens provides classification codes as fields. You can download the results of a search to various formats including CSV and JSON files. I just tested it and got the following column headers related to classifications:

CPC Classifications,IPCR Classifications,US Classifications

There is also an API for bulk queries although that, I believe is not free.

  • The OP will not have sufficient rep points to see your comment suggesting re-posting as a new question since it is a comment to a answer that is hidden from the OP.
    – George White
    May 12 at 23:15

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