1, Xuzhou Sanlian Patent Office Tel: 05 1683850457 Address: No.0/87 Jiefang South Road, Xuzhou City, Jiangsu Province (south of the gate of the Municipal Science and Technology Bureau) Zip code: 22 1009.
2. Xuzhou Huaihai Patent Office Address: Jiefang South Road 187, Xuzhou City, Jiangsu Province (in the courtyard of the Municipal Science and Technology Bureau) Zip code: 22 1009.
These two companies are professional organizations with patent and trademark agency qualifications approved by China National Intellectual Property Administration and the State Administration for Industry and Commerce.