Technology entry in the presence of patent thickets
نویسندگان
چکیده
منابع مشابه
Technology Entry in the Presence of Patent Thickets
We present an empirical analysis of the effects of patent thickets at the European Patent Office on entry into patenting by UK firms. Using a direct measure of patent thicket density, we provide evidence for the existence and growth of patent thickets in specific industries, notably in telecommunications, audiovisual technology, and computer technology. Our analysis indicates that the density o...
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Patent race models assume that an innovator wins the only patent covering a product. But when technologies are complex, this property right is defective: ownership of a product’s technology is shared, not exclusive. In that case I show that if patent standards are low, firms build “thickets” of patents, especially incumbent firms in mature industries. When they assert these patents, innovators ...
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15 صفحه اولPatent 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 کاملThe problem of patent thickets in convergent technologies.
Patent thickets are unintentionally dense webs of overlapping intellectual property rights owned by different companies that can retard progress. This article begins with a review of existing research on patent thickets, focusing in particular on the problem of patent thickets in nanotechnology, or nanothickets. After presenting visual evidence of the presence of nanothickets using a network an...
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ژورنال
عنوان ژورنال: Oxford Economic Papers
سال: 2020
ISSN: 0030-7653,1464-3812
DOI: 10.1093/oep/gpaa034