Xidian Jietong v. Sony Mobile WAPI patent infringement case verdict: Dismissed Sony's appeal

On April 2, 2018, the Beijing Higher People’s Court issued a judgment on the second instance case of necessary patent infringement of WAPI standard of Xi’an Xidun Jietong Wireless Network Communication Co., Ltd. and Sony Mobile Communications (China) Co., Ltd. and rejected it. Sumitomo Mobile’s appeal, to maintain the verdict of the first instance. July 2, 2015, Sony Electronics considers that Sony’s mobile phone was infringed on a method of “a method of secure access and data confidential communication for wireless LAN mobile devices”. v. Beijing Intellectual Property Court.

It is reported that the case involved the invention patent of ZD Czech Telecom’s patent number ZL02139508.X entitled “A Method for Secure Access and Data Secure Communication of Wireless LAN Mobile Devices”, which is the WAPI standard for wireless LAN security access. Core patents.

In August 2015, Sony Mobile filed a request for invalidation of the patent against the Patent Reexamination Board; in March 2016, its request for invalidation was rejected, the patent was maintained in full force, and Sony Mobile did not make the same for the Patent Reexamination Board. Decided to file an administrative lawsuit, the corresponding decision took effect.

In March 2017, the Beijing Intellectual Property Court made a first-instance verdict on the case and found that Sony Mobile Co. constituted a patent infringement. Sony Mobile Co. was sentenced to stop infringements involving cell phone manufacturing and involved in the infringement of mobile phone manufacturing. It also compensated Xidian Jietong Co., Ltd. in accordance with the triple of the license fee. The loss amounted to more than 900 million yuan.