are those with lower quality patents. We empirically examine patent disclosures made to seven large SSOs, and find results …

Beginning in November 2000, patent applications filed in the United States are disclosed after 18 months, rather than … when the patent is granted. Using U.S. patent data from 1976-1996, we find that major inventions are most likely to be … knowledge diffusion, and conclude with a simulation of the law's potential effect on patent grants …

essential to the functioning of the patent system, legal scholars have expressed considerable skepticism about its value in … practice. To adjudicate this issue, we examine the expansion of the USPTO Patent and Trademark Depository Library system … between 1975 to 1997. Whereas the exclusion rights associated with patents are national in scope, the opening of these patent …

of the developing world introduces patent protection for new drug products. This may lead to more research on drugs to … those already offering such protection the situation offers a unique opportunity to examine the incentive role of patent … provides a baseline' against which future research activity can be compared once the new global patent regime is fully …

bodies and private firms. One little-explored empirical testing ground is the patent system. This paper examines the … administrative practices of patent offices in sixty countries over a 150-year period. I show that the usage of patent renewal fees … economies, and those where international trade is more important-incorporate discretionary features into their patent systems …

This paper surveys the major changes in patent policy and practice that have occurred in the last two decades in the U … effects of changes in patent policy. Despite the significance of the policy changes and the wide availability of detailed data … patent policy are few. Possible reasons for these limited results are discussed, and possible avenues for future research are …

It may be advantageous to provide a variety of kinds of patent protection to heterogenous innovations. Innovations … protection in order to be encouraged. We model the problem of designing an optimal patent menu (scope and length) when the … fertility of an innovation in generating more innovations cannot be observed. The menu of patent scope can be implemented with …