post issue activityglossary / POST-ISSUE ACTIVITY post-issue activity. Patents. Any acts done during a patent’s term, including making, using, or selling a patented invention or process, esp. without authorization. 词条贡献者 资深译员大智,毕业于美国一流的高级翻译学院,专注翻译各种与复杂诉讼有关的法律文件。