Citations (61)



150 Years of Patent Protection

Josh Lerner

Harvard Business School - Finance Unit; Harvard University - Entrepreneurial Management Unit; National Bureau of Economic Research (NBER)

January 2000

NBER Working Paper No. w7478

This paper examines three sets of explanations for variations in the strength of patent protection across sixty countries and a 150-year period. Wealthier nations are more likely to have patent systems, to allow patentees a longer time to put their patents into practice, and to ratify treaties assuring equal treatment of other nations. But they are also likely to charge higher fees and limit patent protection in some important ways. Countries with democratic political institutions are consistently more likely to have patent protection appear to be determined by historical factors. The origin of a country's commercial law appears particularly important in explaining the presence of restrictions on patentees' privileges and discriminatory provisions against foreign patentees.

Number of Pages in PDF File: 58

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Date posted: July 5, 2000  

Suggested Citation

Lerner, Josh, 150 Years of Patent Protection (January 2000). NBER Working Paper No. w7478. Available at SSRN: https://ssrn.com/abstract=227594

Contact Information

Josh Lerner (Contact Author)
Harvard Business School - Finance Unit ( email )
Boston, MA 02163
United States
617-495-6065 (Phone)
617-496-7357 (Fax)
HOME PAGE: http://www.people.hbs.edu/jlerner/
Harvard University - Entrepreneurial Management Unit
Cambridge, MA 02163
United States
National Bureau of Economic Research (NBER)
1050 Massachusetts Avenue
Cambridge, MA 02138
United States
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