For each table, the primary key is the patent_number, which connects a row to a row in the main patent table.
TODO: Figure out best way to generate these tables, finish description of attributes for each table.
* Note that I did include some unique attributes for Utility patents as seen below in the "Finding New Paths Unique to Plant, Reissue, and/or Design Patents" section, but for now (11/3/2017) I'm not going to create a separate table for those fields. Most of them seem to be repeated in Reissue, and the other fields, while interesting, are perhaps not very useful.