File Wrapper Estoppel in China  

作　　者：Guoxu Yang 

机构地区：[1]CCPIT Patent-&Trademark Law Office

出　　处：《China's Foreign Trade》2023年第2期58-60,共3页中国对外贸易（英文版）

摘　　要：Fi le w rapper estoppel is sometimes also referred to as prosecution history estoppel.It is a limitation of the doctrine of equivalents.The basic rationale is that when the patent applicant or patentee narrows down the protection scope of the claims by certain amendments or statements in order to meet the requirements of patentability,he cannot recapture the protection territory he surrendered during patent litigations.In other words,he cannot gain benefits on both sides.The following is a brief introduction of file wrapper estoppel practice in China.

关 键 词：RENDER RATIONAL NARROW 

分 类 号：D90[政治法律—法学理论]