Missing 2005 patents in 'ipcr' data
Hello,
I am trying to compile information on patents from 2000-2015 and have run into a problem with the 'ipcr' dataset. I noticed that patents from that year are not in the dataset 'ipcr.' Do you know why this may be and where I can find data on industry classification for patent_id's from 2005? I am talking about specifically the patents with id numbers 6836899 through 698121
Thanks for your help!