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Citation Frequency and the Value of Patented Inventions

Dietmar Harhoff¹; Francis Narin²; F. M. Scherer³; Katrin Vopel⁴

¹ University of Mannheim · ² ipIQ · ³ Harvard University · ⁴ Centre for European Economic Research

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.

DOI

10.1162/003465399558265

Volume

81 (3)

Pages

511-515

Language

en

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BibTeX

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