cassis classglossary / CASSIS/ CLASS CASSIS/CLASS.Patents. A U.S. Patent and Trademark Office database of patents sorted by classification, available at any PTO Depository Library. Cf. CASSIS/BIB. 词条贡献者 双语律师Philipp,国际知名法学院法律专业,擅长翻译各类与医疗保健相关诉讼相关的法律文件。