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Claiming More: The Increased Voluminosity of Patent Applications and its DeterminantsDominique GuellecOrganization for Economic Co-Operation and Development (OECD) Bruno Van Pottelsberghe de la PotterieFree University of Brussels - Solvay Business School; Université Libre de Bruxelles (ULB) - Department of Applied Economics (DULBEA); Centre for Economic Policy Research (CEPR) Nicolas Van ZeebroeckUniversité Libre de Bruxelles, Solvay Brussels School of Economics and Management, ECARES December 2006 CEPR Discussion Paper No. 5971 Abstract: The joint increase in the number and size of patents filed around the world puts the patent system under pressure. This paper analyses the sources of this surge in number of claims and pages of patent applications at the EPO. Four hypotheses are scrutinized: the diffusion of national drafting practices, the increasing complexity of inventions, the emergence of new sectors, and new patenting strategies. The results show that the increasing voluminosity is explained by all these hypotheses and suggest that the diffusion of the US model through the PCT is one of the major factors driving the size of EPO patent applications.
Number of Pages in PDF File: 28 Keywords: Patent voluminosity, patent applications, IP strategy, claim drafting, patent systems JEL Classification: O31, O34, O50 working papers seriesDate posted: January 7, 2007Suggested CitationContact Information
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