The Patent Cooperation Treaty provides the possibility to seek patent rights in a large number of countries by filing a single international application with a single patent office. Since the mid-1980s, the patent cooperation treaty (PCT) procedure has become a popular method for filing patent...

This paper presents a preliminary set of European and international citation data tables designed to enable researchers to become familiar with the subject and undertake a range of analyses. It addresses analytical and statistical issues such as why citations from international searches and...