Needed Patentsview API Fixes
There are serious problems with the patentsview api but, to be clear, they cannot fix all of them themselves. Some of the problems
are because of the underlying data, or lack of it, produced or that should be produced by the uspto.
|Serious Problem||The fix and who's responsible|
|Withdrawn patents can be returned in the query results¹||patentsview changes their loading process to not ingest
|Only utility patents have cpc (Cooperative Patent Classification) assignments||uspto to provide this bulk data². patentsview lacks a source of this data.
|Design and plant patents (and reissued patents of either type) still receive uspc classifications, yet the api does not always return them3.
||Both parties are on the hook for this one. The uspto has not updated
the bulk uspc file since 2018 and is saying
it will discontinue producing it.
patentsview is not returning this data even for the incomplete data the uspto provides. The patentsview page
says "Current USPC classification data for all patents up to May 2015" which is true only for utility patents. Plant, design and reissues of either
still receive uspc assignments but I don't think they understand this.|
|There are 305 patents missing in the xml files the uspto produces and are therefore missing in the patentsview database4||uspto to provide this bulk data|
My expectation is that the patentsview data would match the data in the uspto's patft database
but it does not.
Also, without complete classification data what is the point of doing classification searches using the patentsview api? I'd be a lot happier if there was an api interface to
the patft data (there are issues with the patft data but they are minor in comparison). These serious problems as well as many, many minor ones are listed here.
https://github.com/PatentsView/PatentsView-DB/issues/21 issue I raised about withdrawn patents
being included in results sets and posted about it in the patentsview forum.
- The uspto's cpc bulk data file only contains assignments for utility patents.
- See jm_plants.htm and oldest_plants.htm showing that the earliest and latest plant patents in patentsview do not have uspc assignments
There are 266 patents partially searchable in patft that are missing in the patentsivew database.
There are an additional 39 missing patents fully searchable in patft that are not in patentsview's database.
This problem was also mentioned in the forum post linked in footnote 1.