Shapiro, Carl - Institute of Business and Economic Research (IBER), … - 2005
Keywords: patents, innovation, oligopoly JEL codes: L13, O31. ABSTRACT: Many inventions, great and small, are … such cases? Patent law has struggled with this question for many years. The basic rule in the U.S. is that the patent is … some peculiar results. Suppose that Firm A achieves an invention and files for a patent. Slightly later, but before the …