Dear Patentsview Team,
I hope this message finds you well. I have three questions about pregrant data.
1) I found there are duplicated application id in the pregrant published application data (pg_published_application) but shouldn't the application ids uniquely identify each application?
2) There are duplicated application id in pg_granted_patent_crosswalk too which means there are cases where one application id corresponds to multiple patent id. Why is this the case and how am I supposed to deal with this? I only want to keep utility patents.
3) In these two dataset, pgpub_id and application_id are not one-to-one or one-to-multiple. But aren't they supposed to be? Why is this the case in the data?
Attached are two snapshots for your reference. Thank you very much!