An Tian Zhang & Partners




IP-firm An Tian Zhang & Partners specialises in the prosecution, litigation, and enforcement of IP rights, with a particular focus on the enforcement of patent rights related to agriculture, automobile, and lubricants products.  

Client feedback

“Quick responses, adequate advice.” – Intellectual property

Intellectual property
Work highlights

Represented Syngenta Participations in initiating court proceedings against Shandong Shengbang Lvye Chemical for trademark infringement.

Represented Shell Brands International in a series of trademark dispute cases against Hebei Jianchi Lubricating Oil. The firm won the cancellation cases before the Chinese Patent Office, with subsequent litigations in the Beijing IP and high courts.