IDEAS home Printed from
MyIDEAS: Login to save this article or follow this journal

Patent Citations Indicating Present Value Of The Biotechnology Business


    (ETLA, the Research Institute of the Finnish Economy, Helsinki, Finland)


    (ETLA, the Research Institute of the Finnish Economy, Helsinki, Finland; Kellogg School of Management, Northwestern University, IL, USA)


    (ETLA, the Research Institute of the Finnish Economy, Helsinki, Finland; Department of Neurology, HUCH Helsinki University Central Hospital, Helsinki, Finland)

In this paper our aim is to assess the potential of using patent statistics in predicting the future sales anticipations and present value of a company active in the science-based industry. Instead of using conventional patent and patent application counts as indicators, we constructed patent citation weighted portfolios for each company. This way the heterogeneity of patents can be taken into account. Our data covers biotechnology patents held by Finnish biotechnology companies. Empirical results imply that particularly backward citations are related to present value estimations of the companies. In contrast to some previous studies, forward citations do not seem to predict the present value estimations. The findings provide some important implications on interpreting the significance of patent citations regarding valuation of science-based companies, and planning technology and innovation policies.

If you experience problems downloading a file, check if you have the proper application to view it first. 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:
Download Restriction: Access to full text is restricted to subscribers.

File URL:
Download Restriction: Access to full text is restricted to subscribers.

As the access to this document is restricted, you may want to look for a different version under "Related research" (further below) or search for a different version of it.

Article provided by World Scientific Publishing Co. Pte. Ltd. in its journal International Journal of Innovation and Technology Management.

Volume (Year): 05 (2008)
Issue (Month): 03 ()
Pages: 279-301

in new window

Handle: RePEc:wsi:ijitmx:v:05:y:2008:i:03:p:279-301
Contact details of provider: Web page:

Order Information: Email:

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.:

as in new window
  1. Reitzig, Markus, 2004. "Improving patent valuations for management purposes--validating new indicators by analyzing application rationales," Research Policy, Elsevier, vol. 33(6-7), pages 939-957, September.
  2. Maria Luisa Mancusi, 2003. "Geographical concentration and the dynamics of countries' specialization in technologies," Economics of Innovation and New Technology, Taylor & Francis Journals, vol. 12(3), pages 269-291.
  3. Nikulainen, Tuomo & Hermans, Raine & Kulvik, Martti, 2006. "Patent citations indicating present value of the biotechnology business," Discussion Papers 1048, The Research Institute of the Finnish Economy.
  4. Narin, Francis & Noma, Elliot & Perry, Ross, 1987. "Patents as indicators of corporate technological strength," Research Policy, Elsevier, vol. 16(2-4), pages 143-155, August.
  5. Wesley M. Cohen & Richard R. Nelson & John P. Walsh, 2000. "Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (or Not)," NBER Working Papers 7552, National Bureau of Economic Research, Inc.
  6. Albert, M. B. & Avery, D. & Narin, F. & McAllister, P., 1991. "Direct validation of citation counts as indicators of industrially important patents," Research Policy, Elsevier, vol. 20(3), pages 251-259, June.
  7. 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.
  8. Ernst, Holger, 2003. "Patent information for strategic technology management," World Patent Information, Elsevier, vol. 25(3), pages 233-242, September.
  9. 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.
  10. Jean O. Lanjouw & Mark Schankerman, 1999. "The Quality of Ideas: Measuring Innovation with Multiple Indicators," NBER Working Papers 7345, National Bureau of Economic Research, Inc.
  11. Nikulainen, Tuomo & Pajarinen, Mika & Palmberg, Christopher, 2005. "Patents and Technological Change - A Review with Focus on the FEPOCI Database," Discussion Papers 984, The Research Institute of the Finnish Economy.
  12. Lanjouw, Jean O & Schankerman, Mark, 2001. "Characteristics of Patent Litigation: A Window on Competition," RAND Journal of Economics, The RAND Corporation, vol. 32(1), pages 129-51, Spring.
Full references (including those not matched with items on IDEAS)

This item is featured on the following reading lists or Wikipedia pages:

  1. Technology Assessment

When requesting a correction, please mention this item's handle: RePEc:wsi:ijitmx:v:05:y:2008:i:03:p:279-301. 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: (Tai Tone Lim)

If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

If references are entirely missing, you can add them using this form.

If the full references list an item that is present in RePEc, but the system did not link to it, you can help with this form.

If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your profile, as there may be some citations waiting for confirmation.

Please note that corrections may take a couple of weeks to filter through the various RePEc services.

This information is provided to you by IDEAS at the Research Division of the Federal Reserve Bank of St. Louis using RePEc data.