This paper assesses the impact of adopting a post-grant review institution in the US patent system by comparing the … 'opposition careers' of European Patent Office (EPO) equivalents of litigated US patents to those of a control group of EPO … employing these different methods in our data analysis. We find that EPO equivalents of US litigated patent applications are …

This paper discusses methods for the harmonization and combination of large-scale patent and trademark datasets with … patent data are presented and shown to have both benefits and drawbacks in isolation. We combine the two methods and develop … a set of rules and dictionaries to consolidate European, Patent Cooperation Treaty (PCT) and US patent data with firm …

We report the results of the first comparative study of the determinants and effects of patent oppositions in Europe … thirty times higher than the rate of re-examination at the USPTO. Moreover, opposition leads to a revocation of the patent in … about 41 percent of the cases, and to a restriction of the patent right in another 30 percent of the cases. Re …

This paper discusses methods for the harmonization and combination of large-scale patent and trademark datasets with … patent data are presented and shown to have both benefits and drawbacks in isolation. We combine the two methods and develop … a set of rules and dictionaries to consolidate European, Patent Cooperation Treaty (PCT) and US patent data with firm …

We report the results of the first comparative study of the determinants and effects of patent oppositions in Europe … thirty times higher than the rate of re-examination at the USPTO. Moreover, opposition leads to a revocation of the patent in … about 41 percent of the cases, and to a restriction of the patent right in another 30 percent of the cases. Re …

Financing constraints have been discussed as a major obstacle to innovation. Small and mediumsized enterprises and … provide external finance to innovative firms based on the firms' patent portfolios. Patents have been used as collateral or as … assets assembled in patent funds seeking to commercialize the patent rights. Patent auctions are indicative of a nascent …