Recently, the Hengbo team received a verdict No. 3432 of final instance of Beijing Administrative Case issued by the Beijing Higher People's Court (2019), which decided to uphold the decision of the first instance and the reexamination board. Up to now, the protracted dispute over the design patent (the filter) has come to an end (The picture is for reference only and have nothing to do with the case).

After accepting the client's commission, the Hengbo team made a lot of meticulous preparations, including successfully pointing out the flaws of the other party's evidence and technical understanding errors. In the end, the Beijing High People's Court decided AO Smith to win the second instance.