Trends in patent renewals at the United States patent and trademark office
- 27 December 1995
- journal article
- Published by Elsevier in World Patent Information
- Vol. 17 (4) , 225-234
- https://doi.org/10.1016/0172-2190(95)00043-7
Abstract
No abstract availableKeywords
This publication has 6 references indexed in Scilit:
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- Specialization and size of technological activities in industrial countries: The analysis of patent dataResearch Policy, 1992
- Patent Renewal DataBrookings Papers on Economic Activity. Microeconomics, 1989
- U.S. patent expirations due to the nonpayment of the three and a half year maintenance feeWorld Patent Information, 1988
- Estimates of the Value of Patent Rights in European Countries During the Post-1950 PeriodThe Economic Journal, 1986
- Patents as Options: Some Estimates of the Value of Holding European Patent StocksEconometrica, 1986