IDEAS home Printed from https://ideas.repec.org/
MyIDEAS: Login to save this paper or follow this series

Patent Breadth, Patent Life and the Pace of Technological Improvement

  • Ted O'Donoghue, Suzanne Scotchmer, and Jacques-Fran�ois Thisse.

In active investment climates where firms sequentially improve each other's products, a patent can terminate either because it expires or because a noninfringing innovation displaces it in the market. The patent breadth and patent life together determine which of these occurs first. We distinguish "lagging" breadth, which protects against imitation, from "leading" breadth, which protects against new improved products. We show that if ideas for improvements are frequent then leading breadth is a necessary supplement to lagging breadth. We compare two types of patent policy with leading breadth: (i) patents are finite but very broad, so that the effective life of a patent coincides with its statutory life, and (ii) patents are long but narrow, so that the effective life of a patent ends when a better product replaces it. The former policy improves the diffusion of new products, but the latter has lower R&D; costs.

To our knowledge, this item is not available for download. To find whether it is available, there are three options:
1. Check below under "Related research" whether another version of this item is available online.
2. Check on the provider's web page whether it is in fact available.
3. Perform a search for a similarly titled item that would be available.

Paper provided by University of California at Berkeley in its series Economics Working Papers with number 95-242.

as
in new window

Length:
Date of creation: 01 Oct 1995
Date of revision:
Handle: RePEc:ucb:calbwp:95-242
Contact details of provider: Postal: University of California at Berkeley, Berkeley, CA USA
Phone: 510-642-0822
Fax: 510-642-6615
Web page: http://www.haas.berkeley.edu/groups/iber/wps/econwp.html
Email:


More information through EDIRC

Order Information: Postal: IBER, F502 Haas Building, University of California, Berkeley CA 94720-1922
Email:


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

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

When requesting a correction, please mention this item's handle: RePEc:ucb:calbwp:95-242. 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: (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.

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