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Category Article
Author Okada, Yoshimi : Yusuke Naito : Sadao Nagaoka
Article Title Making the patent scope consistent with the invention: Evidence from Japan
Institution Journal of Economics & Management Strategy
Volume Vol. 27
Number Issue 3
Page pp. 607-625
Date 2018/07/31
Abstract 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.
Notes 岡田 吉美 長岡 貞男 内藤 祐介
URL https://onlinelibrary.wiley.com/doi/abs/10.1111/jems.12266
Label 知的財産権, 知的財産制度
Register date 2018/08/29

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