validity opinionglossary / validity opinion Patents. A patent attorney’s opinion about the likelihood that a patent or patent claim will be invalidated in light of evidence suggesting obviousness, lack of invention, unenforceability, etc. 词条贡献者 译者Gloria,毕业于法国顶尖的高级翻译学院,擅长翻译各种与企业设立相关的法律文件。