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“Singling out individual inventors from patent data”

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  • Ernest Miguélez

    () (Faculty of Economics, University of Barcelona)

  • Ismael Gómez-Miguélez

    () (Technical University of Catalonia)

Abstract

An increasing number of studies in recent years have sought to identify individual inventors from patent data. A variety of heuristics have been proposed for using the names and other information disclosed in patent documents to establish “who is who” in patents. This paper contributes to this literature by describing a methodology for identifying inventors using patents applied to the European Patent Office (EPO hereafter). As in much of this literature, we basically follow a three-step procedure: (1) the parsing stage, aimed at reducing the noise in the inventor’s name and other fields of the patent; (2) the matching stage, where name matching algorithms are used to group similar names; and (3) the filtering stage, where additional information and various scoring schemes are used to filter out these similarly-named inventors. The paper presents the results obtained by using the algorithms with the set of European inventors applying to the EPO over a long period of time.

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File URL: http://www.ub.edu/irea/working_papers/2011/201105.pdf
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Bibliographic Info

Paper provided by University of Barcelona, Research Institute of Applied Economics in its series IREA Working Papers with number 201105.

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Length: 39 pages
Date of creation: May 2011
Date of revision: May 2011
Handle: RePEc:ira:wpaper:201105

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Related research

Keywords: “Names game”; patent data; unique inventors; name matching algorithms. JEL classification:C8; J61; O31; O33; R0.;

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  1. Ajay Agrawal & Iain Cockburn & John McHale, 2003. "Gone But Not Forgotten: Labor Flows, Knowledge Spillovers, and Enduring Social Capital," NBER Working Papers 9950, National Bureau of Economic Research, Inc.
  2. Nicolas CARAYOL (GREThA UMR CNRS 5113) & Lorenzo CASSI (CES, Université Paris 1 Panthéon Sorbonne - CNRS), 2009. "Who\'s Who in Patents. A Bayesian approach," Cahiers du GREThA 2009-07, Groupe de Recherche en Economie Théorique et Appliquée.
  3. Zvi Griliches, 1998. "Patent Statistics as Economic Indicators: A Survey," NBER Chapters, in: R&D and Productivity: The Econometric Evidence, pages 287-343 National Bureau of Economic Research, Inc.
  4. Jinyoung Kim & Sangjoon John Lee & Gerald Marschke, 2006. "International Knowledge Flows: Evidence from an Inventor-Firm Matched Data Set," NBER Working Papers 12692, National Bureau of Economic Research, Inc.
  5. Manuel Trajtenberg & Gil Shiff & Ran Melamed, 2006. "The "Names Game": Harnessing Inventors' Patent Data for Economic Research," NBER Working Papers 12479, National Bureau of Economic Research, Inc.
  6. Grid Thoma & Salvatore Torrisi, 2007. "Creating Powerful Indicators for Innovation Studies with Approximate Matching Algorithms. A test based on PATSTAT and Amadeus databases," KITeS Working Papers 211, KITeS, Centre for Knowledge, Internationalization and Technology Studies, Universita' Bocconi, Milano, Italy, revised Dec 2007.
  7. Julio Raffo & Stéphane Lhuillery, 2009. "How to play the “Names Game”: Patent retrieval comparing different heuristics," CEMI Working Papers cemi-workingpaper-2009-00, Ecole Polytechnique Fédérale de Lausanne, Collège du Management de la Technologie, Management of Technology and Entrepreneurship Institute, Chaire en Economie et Management de l'Innovation.
  8. Bottazzi, Laura & Peri, Giovanni, 2003. "Innovation and spillovers in regions: Evidence from European patent data," European Economic Review, Elsevier, vol. 47(4), pages 687-710, August.
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