在专利侵权辩定中,会碰到不少技术方案对比的过程,专利技术、被控侵权技术、自己专利、公知技术在不同案件中会出现两两对比或三者对比的情况,但是这些概念及相关等同技术可能会不断发展变化,导致对比时产生不确定性。本文认为解决方法主要为两种:一是明确时间界点;二是确认专利侵权判定原则适用的优先性。 In the process of patent infringement argumentation, there will be a lot of contrasts between technical solutions. The patented technology, accused infringement technology, own patents and well-known technology may appear contrasting or contrastive in different cases. However, these concepts And related equivalent technologies may evolve and change, causing uncertainty in comparison. In this paper, the solution is mainly two kinds: one is the definite time boundary point; the other is to confirm the priority of the patent infringement judgment principle.