The Value of European Patents
This paper employs data from an extensive European survey to produce one of the first systematic assessments of the private economic value of patents. The estimated mean of our patent value distribution is higher than 3 million Euros, the median is about one-tenth, and the mode is around a few thousand Euros. This is in line with previous findings about the skewed distribution of patent values. Our measure is significantly correlated with the number of patent citations, references, claims, and countries in which the patent is applied. Citations explain value as much as the other three indicators combined, and the right tail of citations is correlated with the right tail of our value measure. Yet, the four indicators only explain 2.7% of the variance of patent value. Thus, while the use of these indicators as proxies for value, particularly citations, may be justified, predictions based on these indicators carry significant noise. After using country, technology, and patent class fixed effects, we only explain 11.3% of the variation in patent value. The "measure of our ignorance" about patent value is still sizable, which calls for additional research to fill the gap.
|Date of creation:||Jun 2008|
|Date of revision:|
|Contact details of provider:|| Postal: |
Phone: 44 - 20 - 7183 8801
Fax: 44 - 20 - 7183 8820
|Order Information:|| Email: |
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.:
- Dietmar Harhoff & Francis Narin & Frederic M. Scherer & Katrin Vopel, 1997.
"Citation Frequency and the Value of Patented Innovation,"
CIG Working Papers
FS IV 97-26, Wissenschaftszentrum Berlin (WZB), Research Unit: Competition and Innovation (CIG).
- Vopel, Katrin & Scherer, Frederic M. & Narin, Francis & Harhoff, Dietmar, 1997. "Citation Frequency and the Value of Patented Innovation," ZEW Discussion Papers 97-27, ZEW - Zentrum für Europäische Wirtschaftsforschung / Center for European Economic Research.
- Silverberg, Gerald & Verspagen, Bart, 2007.
"The size distribution of innovations revisited: An application of extreme value statistics to citation and value measures of patent significance,"
Journal of Econometrics,
Elsevier, vol. 139(2), pages 318-339, August.
- Silverberg, G. & Verspagen, B., 2004. "The size distribution of innovations revisited: an application of extreme value statistics to citation and value measures of patent significance," Working Papers 04.17, Eindhoven Center for Innovation Studies.
- Silverberg Gerald & Verspagen Bart, 2004. "The size distribution of innovations revisited: an application of extreme value statistics to citation and value measures of patent significance," Research Memorandum 021, Maastricht University, Maastricht Economic Research Institute on Innovation and Technology (MERIT).
- Harhoff, Dietmar & Scherer, Frederic M. & Vopel, Katrin, 2003. "Citations, family size, opposition and the value of patent rights," Research Policy, Elsevier, vol. 32(8), pages 1343-1363, September.
- Pakes, Ariel S, 1986.
"Patents as Options: Some Estimates of the Value of Holding European Patent Stocks,"
Econometric Society, vol. 54(4), pages 755-84, July.
- Ariel Pakes, 1986. "Patents as Options: Some Estimates of the Value of Holding European Patent Stocks," NBER Working Papers 1340, National Bureau of Economic Research, Inc.
- Pakes, Ariel, 1985.
"On Patents, R&D, and the Stock Market Rate of Return,"
Journal of Political Economy,
University of Chicago Press, vol. 93(2), pages 390-409, April.
- Pakes, Ariel, 1985. "On Patents, R & D, and the Stock Market Rate of Return," Scholarly Articles 3436409, Harvard University Department of Economics.
- Singh, Jasjit, 2008. "Distributed R&D, cross-regional knowledge integration and quality of innovative output," Research Policy, Elsevier, vol. 37(1), pages 77-96, February.
- Paul Almeida & Bruce Kogut, 1999. "Localization of Knowledge and the Mobility of Engineers in Regional Networks," Management Science, INFORMS, vol. 45(7), pages 905-917, July.
- Bronwyn H. Hall & Adam Jaffe & Manuel Trajtenberg, 2005. "Market Value and Patent Citations," RAND Journal of Economics, The RAND Corporation, vol. 36(1), pages 16-38, Spring.
- Bessen, James, 2008.
"The value of U.S. patents by owner and patent characteristics,"
Elsevier, vol. 37(5), pages 932-945, June.
- James Bessen, 2006. "The Value of U.S. Patents by Owner and Patent Characteristics," Working Papers 0603, Research on Innovation.
- Ashish Arora & Marco Ceccagnoli & Wesley M. Cohen, 2003.
"R&D and the Patent Premium,"
NBER Working Papers
9431, National Bureau of Economic Research, Inc.
- Giuri, Paola & Mariani, Myriam, 2007.
"Inventors and invention processes in Europe: Results from the PatVal-EU survey,"
Elsevier, vol. 36(8), pages 1105-1106, October.
- Giuri, Paola & Mariani, Myriam & Brusoni, Stefano & Crespi, Gustavo & Francoz, Dominique & Gambardella, Alfonso & Garcia-Fontes, Walter & Geuna, Aldo & Gonzales, Raul & Harhoff, Dietmar & Hoisl, Karin, 2007. "Inventors and invention processes in Europe: Results from the PatVal-EU survey," Research Policy, Elsevier, vol. 36(8), pages 1107-1127, October.
- Juan Alcácer & Michelle Gittelman, 2006. "Patent Citations as a Measure of Knowledge Flows: The Influence of Examiner Citations," The Review of Economics and Statistics, MIT Press, vol. 88(4), pages 774-779, November.
- James Bessen, 2006. "Estimates of Firms' Patent Rents from Firm Market Value," Working Papers 0602, Research on Innovation.
- Jean O. Lanjouw & Mark Schankerman, 2004. "Patent Quality and Research Productivity: Measuring Innovation with Multiple Indicators," Economic Journal, Royal Economic Society, vol. 114(495), pages 441-465, 04.
- Michelle Gittelman & Bruce Kogut, 2003. "Does Good Science Lead to Valuable Knowledge? Biotechnology Firms and the Evolutionary Logic of Citation Patterns," Management Science, INFORMS, vol. 49(4), pages 366-382, April.
- Harhoff, Dietmar & Reitzig, Markus, 2002.
"Determinants of Opposition Against EPO Patent Grants - The Case of Biotechnology and Pharmaceuticals,"
CEPR Discussion Papers
3645, C.E.P.R. Discussion Papers.
- Harhoff, Dietmar & Reitzig, Markus, 2004. "Determinants of opposition against EPO patent grants--the case of biotechnology and pharmaceuticals," International Journal of Industrial Organization, Elsevier, vol. 22(4), pages 443-480, April.
When requesting a correction, please mention this item's handle: RePEc:cpr:ceprdp:6848. See general information about how to correct material in RePEc.
For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: ()
If references are entirely missing, you can add them using this form.