Also in the paper, they mentioned the Assignments on the Web for Patents (AOTW-P), a searchable database of individual USPTO assignment records keyed on reel-frame identification, patent number, and assignor or assignee name (https://assignment.uspto.gov/patent/index.html#/patent/search). Obviously it would not be possible to individually use this tool to query all the patent numbers, but if it would be possible to write a script to somehow query each patent number using the rf_id and parse the response, this could potentially be useful to check the patent numbers, but might not be any more accurate than what will already be in DOCUMENT_INFO.
==Finding New Paths Unique to Plant, Reissue, and/or Design Patents== Based on Oliver's script which searched all xpaths and compared which were unique to particular types, we see that the following attributes are unique to each type of patents other than utility patents. These attributes vary by the XML version, which changed over time. Therefore, the lists below are a superset of the attributes that are unique to each of the patents types listed below across all XML versions. When I am done finding the supersets, we will determine how to integrate these attributes into the design for the patent table. '''There appears to be a fifth patent type in the results from Oliver's script, and there are attributes that are unique to Utility patents, though they do not appear particularly useful''' ===Plant Patents===* US Claim Statement (XML45) - unclear what this represents* Latin Name (XML44)* US Botanical Variety (XML44) ===Reissue Patents===* Parent Status (XML45)* Parent Document (XML44) - seems to be either a normal document or a parent grant document** Date** Document number** Country ** Document ID* Child Document (XML44)** Document ID** Document Number* Continuing Reissue (XML44)** Document ID** Relation** Document Number ===Design Patents===* length of grant (XML45)* Hague Agreement Data (XML45) - allows people to file design patents in 66 countries with one application** International Registration Date** International Filing Data** International Registration Publication Date** International Registration Number