Abstract
This paper examines differences in value across different patent types. Two hypotheses are investigated: Patent types protecting results of cumulative knowledge formation are more valuable than other patents and increasing risk of imitation detracts comparatively more from patents appearing early in a process of knowledge accumulation. Applying a unique text-mining method based on semantic structures in patent text and IPC codes we identify 7 distinct patent types. With zero inflated negative binomial regressions we test and confirm our hypotheses using a dataset consisting of 1322 patents from 110 Scandinavian biotech firms.
Original language | English |
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Publication date | 2011 |
Number of pages | 26 |
Publication status | Published - 2011 |
Event | 6th Annual Conference of the EPIP Association - Bruxelles, Belgium Duration: 8 Sept 2011 → 9 Sept 2011 Conference number: 6 http://www.epip.eu/conferences/epip06/ |
Conference
Conference | 6th Annual Conference of the EPIP Association |
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Number | 6 |
Country/Territory | Belgium |
City | Bruxelles |
Period | 08/09/2011 → 09/09/2011 |
Other | Fine-Tuning IPR debates |
Sponsor | Free University of Brussels |
Internet address |