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  • Ryan Lampe, Tim Bresnahan, Christian Helmers, Eric Hilt, Rick Hornbeck, Pete Klenow +12 others
  • 2012
Patent pools, which allow firms to combine separately owned patents, are expected to strengthen incentives for R&D by reducing litigation risks and license fees. But pools may also weaken incentives by creating high levels of effective concentration in an industry. This paper takes advantage of a window of regulatory tolerance under the New Deal to examine(More)
We analyze the patent filing strategies of foreign pharmaceutical companies in Chile distinguishing between "primary" (active ingredient) and "secondary" patents (patents on modified compounds, formulations, dosages, particular medical uses, etc.). There is prior evidence that secondary patents are used by pharmaceutical originator companies in the U.S. and(More)
We analyze the impact of bifurcation in Germany's patent litigation system where infringement and validity of a patent are decided independently by different courts. This creates situations in which a patent is held infringed that is subsequently invalidated. Our conservative estimates indicate that 12% of infringement cases in which the patent's validity(More)
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