منابع مشابه
Patent Trolls and Technology Diffusion
Patent assertion entities, sometimes known as ‘patent trolls,’ do not manufacture goods themselves but profit from licensing agreements that they often enforce via the threat of litigation. This paper explores empirically how litigation by one such patent troll affected the sales of medical imaging technology. It finds evidence that relative to similar products, made by the same firm, but not c...
متن کاملPatent "Trolls" and Claim Construction
This Essay explores the largely overlooked relationship between claim construction and patent assertion entities (patent “trolls”) finding that claim construction problems and trends benefit patent assertion entities. First, the Federal Circuit is deeply divided as to the proper approach to claim construction. This split is a significant contributor to uncertain patent scope, which is widely-re...
متن کاملWho Feeds the Trolls? Patent Trolls and the Patent Examination Process
We shed light on the patent-purchasing behavior of non-practicing entities (NPEs) by leveraging random examiner assignment and detailed patent prosecution data. NPEs disproportionately purchase patents issued by lenient examiners, who force fewer edits to claims text and have lower standards for non-obviousness and claim clarity. We then provide additional evidence from European Patent O ce dec...
متن کاملPatent Thickets, Trolls and Unproductive Entrepreneurship
I introduce and analyze an equilibrium model of invention, patenting and infringement under monopolistic competition. Profitable use of inventions requires adaptation to complementary technologies. With patents, a thicket of conflicting rights emerges and costly infringements occur. This taxes invention and lowers welfare. When an inventor may be a “troll”—patent without inventing—the rate of i...
متن کاملPatent Trolls on Markets for Technology – An Empirical Analysis of Trolls’ Patent Acquisitions
Patent trolls—firms that appropriate profits from innovation by enforcing patents against infringers—are peculiar players on markets for technologies. As buyers of patents, they are solely interested in the exclusion right, not in the underlying knowledge. Similarly, when they sell or license out patents, the transaction does not involve a technology transfer. In this paper, we empirically anal...
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ژورنال
عنوان ژورنال: SSRN Electronic Journal
سال: 2014
ISSN: 1556-5068
DOI: 10.2139/ssrn.2539280