Patents applicants: how to create the full time series

I share a presentation I made @ EPo & KUL summer school in Vienna last september!
hope it's useful to someone else.

Patents change applicants data within time;
Main reason for change are ownership change, name/address change, M&A …
Applicant’s names contained in TLS206 is the ‘last available’ data;
PATSTAT Global + EP Register make available several sources to build a chain of names
and a timeline for patents contained;

Patents applicants: how to create the full time series from Gianluca Tarasconi