References

• 1987Appropriating the Returns from Industrial Research and Development3,771 cited
• 2001The NBER Patent Citation Data File: Lessons, Insights and Methodological Tools3,537 cited
• 2000Protecting Their Intellectual Assets: Appropriability Conditions and Why U.S. Manufacturing Firms Patent (or Not)3,045 cited
• 2017Technological Innovation, Resource Allocation, and Growth*2,494 cited
• 2008Against Intellectual Monopoly921 cited
• 1986Patents as Options: Some Estimates of the Value of Holding European Patent Stocks819 cited
• 1986Estimates of the Value of Patent Rights in European Countries During the Post-1950 Period794 cited
• 1984Patents as Options: Some Estimates of the Value of Holding European Patent Stocks731 cited
• 1998How to Count Patents and Value Intellectual Property: The Uses of Patent Renewal and Application Data696 cited
• 2006The Value of U.S. Patents by Owner and Patent Characteristics529 cited
• 1979The Rate of Obsolescence Of Knowledge, Research Gestation Lags, and the Private Rate of Return to Research Resources497 cited
• 1998How Valuable is Patent Protection? Estimates by Technology Field461 cited
• 1986The Value of Patents as Indicators of Inventive Activity401 cited
• 2007R&D and the patent premium363 cited