Law Commons^™

The Value Of U.S. Patents By Owner And Patent Characteristics, James Bessen

Faculty Scholarship

This paper uses renewal data to estimate the value of U.S. patents, controlling for patent and owner characteristics. Estimates of U.S. patent value are substantially larger than estimates for European patents, however, the ratio of U.S. patent value to R&D for firms is only about 3%. Patents issued to small patentees are much less valuable than those issued to large corporations, perhaps reflecting imperfect markets for technology. Litigated patents are more valuable, as are highly cited patents. However, patent citations explain little variance in value, suggesting limits to their use as a measure of patent quality.

Estimates Of Patent Rents From Firm Market Value, James Bessen

Faculty Scholarship

The value of patent rents is an important quantity for policy analysis. However, estimates in the literature based on patent renewals might be understated. Market value regressions could provide validation, but they have not had clear theoretical foundations for estimating patent rents. I develop a simple model to make upper bound estimates of patent rents using regressions on Tobin's Q. I test this on a sample of US firms and find it robust to a variety of considerations. My estimates correspond well with estimates based on patentee behavior outside the pharmaceutical industry, but renewal estimates might be understated for pharmaceuticals.

Inducers And Authorisers: A Comparison Of The Us Supreme Court's Grokster Decision And The Australian Federal Court's Kazaa Ruling, Jane C. Ginsburg, Sam Ricketson

Faculty Scholarship

On June 27, 2005, the US Supreme Court announced its much-awaited decision in MGM Studios, Inc. v. Grokster Ltd. A few months after this, the Federal Court of Australia handed down its decision at first instance in relation to parallel litigation in that country concerning the KaZaa file sharing system. Both decisions repay careful consideration of the way in which the respective courts have addressed the relationship between the protection of authors' rights and the advent of new technologies, particularly in relation to peer-to-peer networks.

In the Grokster case, songwriters, record producers and motion picture producers alleged that two popular …