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Making the patent scope consistent with the invention: Evidence from Japan
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 th...
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| Published in: | Journal of economics & management strategy 2018-09, Vol.27 (3), p.607-625 |
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| Main Authors: | , , |
| Format: | Article |
| Language: | English |
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| cited_by | cdi_FETCH-LOGICAL-c3676-fb32d80ec1960232c5301468d3a3baa8ee56dda287c55dc832723b31adefae233 |
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| cites | cdi_FETCH-LOGICAL-c3676-fb32d80ec1960232c5301468d3a3baa8ee56dda287c55dc832723b31adefae233 |
| container_end_page | 625 |
| container_issue | 3 |
| container_start_page | 607 |
| container_title | Journal of economics & management strategy |
| container_volume | 27 |
| creator | Okada, Yoshimi Naito, Yusuke Nagaoka, Sadao |
| description | 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. |
| doi_str_mv | 10.1111/jems.12266 |
| format | article |
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| ispartof | Journal of economics & management strategy, 2018-09, Vol.27 (3), p.607-625 |
| issn | 1058-6407 1530-9134 |
| language | eng |
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| source | International Bibliography of the Social Sciences (IBSS); Business Source Ultimate【Trial: -2024/12/31】【Remote access available】; Wiley; EBSCO_EconLit with Full Text（美国经济学会全文数据库） |
| subjects | claim length first claim Grants K29 narrowing of patent scope O31 O34 O38 patent examination patent scope quality of prior art disclosure |
| title | Making the patent scope consistent with the invention: Evidence from Japan |
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