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Patents

Submission + - Study finds that valuable patents lose in trial (blogspot.com)

perapuikkonen writes: Patents deemed most valuable by analysts seem to be quite worthless. The almost always lose in the court.
Quote from a paper linked in the TFA:

We designed this study to explore the effects of repeat play on litigation behavior, contributing to a literature on the economics of civil procedure as well as the substance of patent law. But what we found was dramatic and unexpected: The patents and patentees that occupy the most time and attention in court and in public policy debates – the very patents that economists consider the most valuable – are astonishingly weak. Non-practicing entities and software patentees almost never win their cases. That may be a good thing, if you believe that most software patents are bad or that NPEs are bad for society. But it certainly means that the patent system is wasting more of its time than expected dealing with weak patents. And it also suggests that both our measures of patent value and our theories of litigation behavior need some serious reconsideration.

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