Advanced Search
MyIDEAS: Login

How to Count Patents and Value Intellectual Property: The Uses of Patent Renewal and Application Data

Contents:

Author Info

  • Lanjouw, Jean O
  • Pakes, Ariel
  • Putnam, Jonathan

Abstract

Patent counts are very imperfect measures of innovative output. This paper discusses how additional data--the number of years a patent is renewed and the number of countries in which protection for the same invention is sought--can be used to improve on counts in studies that require a measure of the extent of innovation. Simple weighting schemes are proposed, which may remove half of the noise in patent counts as a measure of innovative output. The authors describe models of the patent application and renewal processes whose parameter estimates can be used to assess the value of the proprietary rights created by the patent laws. The authors illustrate their use with estimates of how the value of patent protection would vary under alternative legal rules and renewal fees and with estimates of the international flows of returns from the patent system. Recent progress in the development of databases has increased the potential for this type of analysis. Copyright 1998 by Blackwell Publishing Ltd

Download Info

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: http://www.blackwell-synergy.com/servlet/useragent?func=synergy&synergyAction=showTOC&journalCode=joie&volume=46&issue=4&year=1998&part=null
File Function: link to full text
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.

Bibliographic Info

Article provided by Wiley Blackwell in its journal Journal of Industrial Economics.

Volume (Year): 46 (1998)
Issue (Month): 4 (December)
Pages: 405-32

as in new window
Handle: RePEc:bla:jindec:v:46:y:1998:i:4:p:405-32

Contact details of provider:
Web page: http://www.blackwellpublishing.com/journal.asp?ref=0022-1821

Order Information:
Web: http://www.blackwellpublishing.com/subs.asp?ref=0022-1821

Related research

Keywords:

References

No references listed on IDEAS
You can help add them by filling out this form.

Citations

Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
as in new window

Cited by:
This item has more than 25 citations. To prevent cluttering this page, these citations are listed on a separate page.

Lists

This item is not listed on Wikipedia, on a reading list or among the top items on IDEAS.

Statistics

Access and download statistics

Corrections

When requesting a correction, please mention this item's handle: RePEc:bla:jindec:v:46:y:1998:i:4:p:405-32. 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: (Wiley-Blackwell Digital Licensing) or (Christopher F. Baum).

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.