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1.专利权用尽；
2.先用权；
3.临时过境；
4.将专利作为科学研究和实验对象使用；
5.为提供行政审批信息使用或提供专利药品或医疗器械；
6.现有技术或现有设计抗辩；
7.强制许可。
Always put the interests of customers first, focus on solving major intellectual property law issues, only to accept the value of the client commission, attention to their professional ethics and professional ideals, to become an expert intellectual property lawyers and make unremitting efforts.
