This paper is the first to defend and commend the role of patent trolls in litigation. It argues that trolls either are … not the sole source of patent litigation ills or are not responsible for these ills in the first place. Next, it … demonstrates that trolls provide the same litigation-related benefits as commercial litigation funders, which also finance patent …

developed in-house. But combining all patent cases may obscure important differences between plaintiffs who buy patents and … time when asserting purchased patents. By contrast, inventor-owned NPEs -- but not patent assertion entities -- do better … with purchased patents. The results also differ by area of technologyOur results have implications for the design of patent …

This paper estimates the total cost of patent litigation to alleged infringers. We use a large sample of stock market …

This Article reviews empirical patent litigation research to reveal patent policy lessons. First, the Article presents … facts about patent litigation. Next, it analyzes the patent premium. Patent litigation research reveals little about the … magnitude of the patent premium, but the research reveals the strategies firms use to capture the patent premium and the patent …

rights (IPR) regimes. Weak IPR regimes usually feature weak patent enforcement, such as relatively low level of compensation … among utility models- the type of patents inferior to invention patents. I also document that China’s patent infringement …. These empirical patterns suggest that weak IPR regimes might create a “lemon market” for patent protection in which truly …

Differently from the majority of countries in the European Union and around the world, Germany’s patent laws and … impact on defendants during patent infringement proceedings. Especially on the practically important preliminary stage an … monopolistic patent right often seems to be treated in a too strict, property-like manner and its economic value seems not to be …

Although patent litigation has become increasingly global, with litigants earning billion-dollar verdicts and seeking … litigants are increasingly drawn, and to which policy makers interested in harmonizing the U.S. patent system look in vain for … database including nearly 9,000 patent suits from seven of the largest and most judicially-active countries in the European …

enforcement activities well before their patent rights expire. NPEs, by contrast, begin asserting their patents relatively late in … the patent term and frequently continue to litigate to the verge of expiration. This variance in litigation timing is so … dramatic that all claims asserting the average product-company patent are resolved before the average NPE patent is asserted …

examination characteristics to understand the resulting patent rights. By controlling (at least in part) for patent value, the … estimation strategy has implications for the degree to which patent examination characteristics are correlated with uncertainty …

We build a model of innovation and patent adjudication under two forms of uncertainty; uncertainty regarding whether … extending patent length, the standards of proof for non-obviousness should be high. The intuition for this is that patent length … should be set so that the increase in innovation from extending patent length is balanced by the increase in deadweight loss …