The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools
Bronwyn H. Hall; Adam B. Jaffe; Manuel Trajtenberg;
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- jel: jel:O3
This paper describes the database on U.S. patents that we have developed over the past decade, with the goal of making it widely accessible for research. We present main trends in U. S. patenting over the last 30 years, including a variety of original measures construct... View more
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National Bureau of Economic Research ( NBER ) United StatesWebsite url: http://www.nber.org/90% - Metrics
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