从属专利、等同原则与专利侵权判定——对一个争讼十年从属专利侵权案的分析

Dependent Patent,Doctrine of Equivalents and Judgment of Patent Infringement——On a Dependent Patent Infringement Case

从属专利在专利法及其实施细则中均没有明确定义,但在专利实践中,从属专利是客观存在的,当前后两个有效专利的保护范围发生冲突时,在后专利一定从属于在先专利,因而就有了从属专利的问题。文章通过具体案例分析,阐述从属专利、等同原则在专利侵权判定中的作用和意义。

Dependent patent hasn＇t been clearly defined in patent law or rules for implementation.However,in patent practice,the dependent patent is objective.When scopes of protection of two successive effective patents are in conflict with each other,the latter one must be subject to the former one,thus leading to the issue of dependent patent.Through the analysis of a concrete case,this paper has stated the functions and significance of dependent patent and doctrine of equivalents in judgment of patent infringement.