Patent Thicket, Secrecy, and Licensing
Illoong Kwon (Seoul National University)발행년도 2012Vol. 28No. 1
초록This paper considers a patent portfolio race where firms compete for complementarypatents, called a patent thicket. When firms have an option to keep their innovation secret,this paper shows that there exists an equilibrium where firms’ patent propensity is strictlybetween zero and one. In such an equilibrium, stronger patent protection reduces the firms’investment in innovation. Moreover, this result does not change even when a licensingcontract is feasible.