基于药品专利制度优化设计的多重维度实证分析

Empirical Analysis from Multi-Dimensions on the Basis of Optimal Design of Pharmaceutical Patent Regime

药品专利制度在授予专利权人垄断权利的同时,必然会产生专利权人享有垄断期限的长短和垄断范围的大小问题。本文在药品专利权人、模仿者以及社会公众利益平衡的基础之上,通过最优权衡的实证分析以寻求社会福利最大化条件下药品专利长度和宽度的最佳组合方向。结果显示,药品专利保护长度与社会福利呈正相关关系,药品专利保护宽度与社会福利呈负相关关系。最后基于实证结果对药品专利长度和宽度的相关立法例进行可信度分析。

As inventor is endowed with monopoly rights by pharmaceutical patent regime,it refers inevitably to the protection term and scope of pharmaceutical patent.The paper analyzed empirically the optimal combination of patent length（protection term）and patent width（protection scope）in order to maximize social welfare on the basis of interest balance among inventor,generic drug company and the public.The analysis conclusions were that protection length of pharmaceutical patent was correlated positively with social welfare;on the contrary,protection width was correlated negatively with social welfare.At last credibility of the conclusions was verified through the analysis on the related legislations of patent length and width.