wipo bulk file and wipo_field_id search #50
Description
A forum user posted that the bulk wipo file does not have any patents with a field_id of 11. The patents endpoint also doesn't return any patents for {"wipo_field_id":"11"}. ipc_technology.csv has a single IPC_code of "G01N 33/%" (note there are two spaces between the N and the 3) for Field_number 11 It should match patents like {"patent_number":["5726061","3930726"]}
1976.dat has an ICL G01N 3316 for 3930726 and 1981.dat has several IPCs for 5726061 all beginning G01N 33. I would think wipo_field_id 11 should return the same ones the patents endpoint returns from {"_and":[{"ipc_section":"G"},{"ipc_class":"01"},{"ipc_subclass":"N"},{"ipc_main_group":"33"}]} If I knew python better I'd suggest a fix for process_wipo.py