
Patent resources
Five IP offices homepage
Common website of the European PO, Japan PO, Korean PO, China PO and USPTO by Mar 23
Three IP offices
Common website of USPTO, European PO and Japan PO by Mar 23
Rawpatents blog
Pajek data: US patents
WIPO cooperates with intellectual property (IP) offices from around the world to provide its stakeholders with up-to-date IP statistics. Statistical Data The WIPO IP Statistics Data Center is the on-line service enabling access to WIPO’s statistical data. The WIPO Statistical Country Profiles provide IP information for around 190 countries.
IPC concordance
USPTO patents

