Consolidating firm portfolios of patents across different offices. A comparison of sectoral distribution of patenting activities in Europe and Japan

Grid, Thoma and Kazuyuki, Motohashi and Jun, Suzuki (2010): Consolidating firm portfolios of patents across different offices. A comparison of sectoral distribution of patenting activities in Europe and Japan.

Abstract

This paper describes a methodology for the construction of a novel patent dataset for computing consolidated patent portfolios across patent offices. In particular, relying on two previous contributions – the EPIP database for EPO/PCT patents and the IIP patent database for JPO patent documents – we discuss how to integrate the applicant names of these two databases with the mean of priority information from PATSTAT. This methodology yields significant improvements in the harmonization of applicants name for European firms in IIP patent database and Japanese firms in EPIP database. The paper concludes with a first look to the differences in patenting strategy by European and Japanese firms.

• Item Type: MPRA Paper
• Language: English
• Keywords: patent database; Japan; Europe
• Subjects: C - Mathematical and Quantitative Methods > C8 - Data Collection and Data Estimation Methodology ; Computer Programs > C81 - Methodology for Collecting, Estimating, and Organizing Microeconomic Data ; Data Access; O - Economic Development, Innovation, Technological Change, and Growth > O3 - Innovation ; Research and Development ; Technological Change ; Intellectual Property Rights > O34 - Intellectual Property and Intellectual Capital

References

Bessen J. and R. M. Hunt (2007), An Empirical Look at Software Patents, Journal of Economics and Management Strategy 16, no. 1, pp. 157-89.

Goto A. and K. Motohashi (2007), Construction of a Japanese Patent Database and a first look at Japanese patenting activities, Research Policy 36(9), 2007/11, pp.1431-1442

Thoma G., S. Torrisi, A. Gambardella, D. Guellec, B. H. Hall, and D. Harhoff (2010) “Harmonizing and Combining Large Datasets – An Application to Firm-Level Patent and Accounting Data”, NBER Working Paper No. 15851, March 2010