This file is part of IDEAS, which uses RePEc data


[ Papers | Articles | Software | Books | Chapters | Authors | Institutions | JEL Classification | NEP reports | Search | New papers by email | Author registration | Rankings | Volunteers | FAQ | Blog | Help! ]

Long live patents: the increasing life expectancy of patent applications and its determinants

Author info | Abstract | Publisher info | Download info | Related research | Statistics
Author Info
Nicolas van Zeebroeck () (Centre Emile Bernheim, Solvay Business School, Université Libre de Bruxelles, Brussels.)

Additional information is available for the following registered author(s):

Abstract

Relying on a comprehensive dataset including detailed information on all patent applications filed to the EPO from 1980 to 2000 and on the renewal of those of them that were granted, this paper presents the first survival time analysis of the determinants of patent length. The results are threefold: first, they clearly establish that the life expectancy of patent rights has significantly increased over the past decades despite a small decline in the average grant rate. Second, they show that some filing strategies strongly influence the length of patents, possibly due to induced delays in the examination process. And third, they confirm that more valuable patents (more cited or covering a larger geographical scope) tend to live longer.

Download Info
To download:

If you experience problems downloading a file, check if you have the proper application to view it first. Information about this may be contained in the File-Format links below. In case of further problems read the IDEAS help page. Note that these files are not on the IDEAS site. Please be patient as the files may be large.

File URL: http://www.solvay.edu/EN/Research/Bernheim/documents/wp08040.pdf
File Format: application/pdf
File Function: First version, 2008
Download Restriction: no

Publisher Info
Paper provided by Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB) in its series Working Papers CEB with number 08-040.RS.

Download reference. The following formats are available: HTML (with abstract), plain text (with abstract), BibTeX, RIS (EndNote, RefMan, ProCite), ReDIF
Length: 33 pages
Date of creation: Jun 2008
Date of revision:
Handle: RePEc:sol:wpaper:08-040

Contact details of provider:
Postal: CP145/01, 21, avenue F.D. Roosevelt, 1050 Bruxelles
Phone: +32 (0)2 650.48.64
Fax: +32 (0)2 650.41.88
Email:
Web page: http://www.solvay.edu/EN/Research/Bernheim/index.php
More information through EDIRC

For technical questions regarding this item, or to correct its listing, contact: (CEB).

Related research
Keywords: Patent length; Patent value; Renewals; Granting Process; Survival Time Analysis;

Other versions of this item:

Find related papers by JEL classification:
O31 - Economic Development, Technological Change, and Growth - - Technological Change - - - Innovation and Invention: Processes and Incentives
O34 - Economic Development, Technological Change, and Growth - - Technological Change - - - Intellectual Property Rights
O50 - Economic Development, Technological Change, and Growth - - Economywide Country Studies - - - General

This paper has been announced in the following NEP Reports:

References listed on IDEAS
Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.:
  1. Mark Schankerman, 1998. "How Valuable is Patent Protection? Estimates by Technology Field," RAND Journal of Economics, The RAND Corporation, vol. 29(1), pages 77-107, Spring. [Downloadable!] (restricted)
  2. Mario Calderini & Giuseppe Scellato, 2004. "Intellectual property rights as strategic assets: the case of european patent opposition in the telecommunication industry," CESPRI Working Papers 158, CESPRI, Centre for Research on Innovation and Internationalisation, Universita' Bocconi, Milano, Italy, revised Jul 2004. [Downloadable!]
  3. Dominique Guellec & Bruno van Pottelsberghe de la Potterie, 2002. "The Value of Patents and Patenting Strategies: Countries and Technology Areas Patterns," Economics of Innovation and New Technology, Taylor and Francis Journals, vol. 11(2), pages 133-148, January. [Downloadable!] (restricted)
  4. Tong, Xuesong & Frame, J. Davidson, 1994. "Measuring national technological performance with patent claims data," Research Policy, Elsevier, vol. 23(2), pages 133-141, March. [Downloadable!] (restricted)
  5. Guellec, Dominique & Pottelsberghe de la Potterie, Bruno v., 2000. "Applications, grants and the value of patent," Economics Letters, Elsevier, vol. 69(1), pages 109-114, October. [Downloadable!] (restricted)
  6. James Bessen, 2006. "The Value of U.S. Patents by Owner and Patent Characteristics," Working Papers 0603, Research on Innovation. [Downloadable!]
    Other versions:
  7. Alexander Jerak & Stefan Wagner, 2006. "Modeling probabilities of patent oppositions in a Bayesian semiparametric regression framework," Empirical Economics, Springer, vol. 31(2), pages 513-533, June. [Downloadable!] (restricted)
  8. Nancy T. Gallini, 1992. "Patent Policy and Costly Imitation," RAND Journal of Economics, The RAND Corporation, vol. 23(1), pages 52-63, Spring. [Downloadable!] (restricted)
  9. Francesca Cornelli & Mark Schankerman, 1999. "Patent Renewals and R&D Incentives," RAND Journal of Economics, The RAND Corporation, vol. 30(2), pages 197-213, Summer. [Downloadable!] (restricted)
Full references

Cited by:
(explanations, Please report citation or reference errors to , or , if you are the registered author of the cited work, log in to your RePEc Author Service profile, click on "citations" and make appropriate adjustments.)

  1. Nicolas van Zeebroeck, 2008. "Développement et impact des stratégies de dépôt de brevets," Working Papers CEB 08-041.RS, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
    Other versions:
  2. Nicolas van Zeebroeck, 2009. "Filing strategies and the increasing duration of patent applications," Working Papers CEB 09-005.RS, Université Libre de Bruxelles, Solvay Brussels School of Economics and Management, Centre Emile Bernheim (CEB). [Downloadable!]
Statistics
Access and download statistics

Did you know? There are NEP reports in over 80 fields that deliver new research to your email.

This page was last updated on 2009-11-23.

This information is provided to you by IDEAS at the Department of Economics, College of Liberal Arts and Sciences, University of Connecticut using RePEc data on a server sponsored by the Society for Economic Dynamics.