Hey again My main question is, how will you find the amount of unique danish patent families in a given year from 1990 to 2016? Below I have posted "CODE1" and "CODE2". I have originally used "CODE1" and afterwards removed duplicates from the INPADOC patent families to ...

Yes! I have used the "CODE1" and afterwards I have removed duplicates on the INPADOC family to isolate the amount if unique danish patent families each year. I have tried with another code, "CODE2", and here I find another amount of unique patent families than in "CODE1"...

Dear PATSTAT'ers Can anyone refer to a good website, report etc. that describes the exact difference between the data in PATSTAT and the data used in WIPO's IP Statistics Data Center? The WIPO IP Statistics Data Center can be found here: https://www3.wipo.int/ipstats/index.htm?tab=patent I have alre...