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| A Comparative Study on Cumulative Innovation Effect of Competitive Patent Pools with Independent license terms |
| Luo Youtao;Liang Zheng;Du Xiaojun;Xia Dong |
| School of Public Policy and Management, Tsinghua University, Beijing 100084, China;School of Business Administration, Northeastern University, Shenyang 110819, China |
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Abstract Competitive patent pools based on different technical standards have been appearing in high technique industry as competitions among technical standards are becoming intensive. More and more competitive patent pools have used independent license terms in order to encourage the firms belong to them to innovate and protect their benefits. In this paper, we have developed two mathematical models of cumulative innovation effect of competitive patent pools with and without independent license terms to comparative study with the help of dynamic game theory and stochastic analysis. After then, result shows: generally competitive patent pools are able to lower patent licensing fees, promote patent application and increase social welfare as well as encourage firms to innovate, however cumulative innovation effect of competitive patent pools are influenced by multi-factor, for example patent type, degree of differentiation among patent pools, allocation proportion of patent licensing fees and so on, so specifically cumulative innovation effect of competitive patent pools appear complicated.
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Received: 18 August 2015
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