pct filing dateglossary / PCT FILING DATE PCT filing date. Patents. The date of an international application under the Patent Cooperation Treaty. — Also termed international filing date. See PATENT COOPERATION TREATY. 词条贡献者 双语律师Roger,毕业于一所培养最顶级翻译人才的语言学院,擅长翻译各类与商业秘密咨询与诉讼相关的法律文件。