Making the patent scope consistent with the invention: Evidence from Japan
Yusuke Naito and
Journal of Economics & Management Strategy, 2018, vol. 27, issue 3, 607-625
It is a crucial function of patent examination to make the patent scope consistent with the contribution of the invention to the state of the art. We assess this function using newly developed data on the scope of Japanese patent applications and grants. We find that the scope was narrowed in two thirds of the grants, both the incidence and the extent of narrowing increased when the applicant chose broad initial scope and decreased when the quality of the applicant's disclosure of prior art was high, and that important applications experienced narrowing more frequently, as one expects from rational examination.
References: Add references at CitEc
Citations: Track citations by RSS feed
Downloads: (external link)
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
Persistent link: https://EconPapers.repec.org/RePEc:bla:jemstr:v:27:y:2018:i:3:p:607-625
Ordering information: This journal article can be ordered from
http://www.blackwell ... ref=1058-6407&site=1
Access Statistics for this article
More articles in Journal of Economics & Management Strategy from Wiley Blackwell
Bibliographic data for series maintained by Wiley Content Delivery ().