Citation Frequency And The Value Of Patented Inventions
Through a survey, private economic value estimates were obtained on 964 inventions made in the United States and Germany and on which German patent renewal fees were paid to full-term expiration in 1995. A search of subsequent U.S. and German patents yielded counts of citations to those patents. Patents renewed to full-term were significantly more highly cited than patents allowed to expire before their full term. The higher an invention's economic value estimate was, the more the patent was subsequently cited. © 1999 by the President and Fellows of Harvard College and the Massachusetts Institute of Technology
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Volume (Year): 81 (1999)
Issue (Month): 3 (August)
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