EU Trademark Classification EU01 Chemicals Barium sulphate Class 01 Barium sulphate 1363 硫酸钡 Chinese 硫酸钡 English Barium sulphate Spanish sulfato de bario Site ref. 1363 Class 01 Included in Harmonised Database (HDB), TM5 ID List, WIPO Madrid Goods and Services (MGS)