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在通讯电子等科技前沿领域,发明中某些部件的内部结构已不再是技术关注的重点,某些部件采用与否往往取决于其功能。在这些领域中,功能性限定特征业已成为权利要求的主要撰写方式之一。我国专利制度中并没有关于功能性限定特征的详细规定,理论上,对功能性限定特征的理解依然存在一定误区。本文借鉴美国法院的诸多案例,对等同实施方式和等同原则应用于功能性限定特征时,可能出现的问题和具体适用规则进行了详细梳理。
In the field of advanced science and technology such as communications and electronics, the internal structure of certain components in inventions is no longer the focus of technical attention. The adoption of certain components often depends on their functions. In these areas, the functional definition of features has become one of the main ways to write a claim. China’s patent system does not contain detailed provisions on the features of the limited features of the definition. Theoretically, there still exist some errors in the understanding of the features of the limited features. This article draws lessons from many cases in the U.S. courts and elaborates the possible problems and specific applicable rules when the equivalent implementation and equivalence principle are applied to the functional limited features.