Liu Yan

                             Liu Yan

                             Master of Information and Control Engineering, China University of Petroleum

                             Professional field：

                             Application document writing, office action reply, review and invalidity, intellectual property infringement disputes

                             Professional experience：

                             Liu Yan deals with many cases in review, invalidity, and patent infringement disputes, he/she is experienced in patent mining, application document writing, office action                              reply, review and invalidity, and intellectual property infringement disputes.

                             Successful cases：

                             201610257573.1 Carbon microsphere production method and device, Qinhuangdao Huarui Coal Coke Chemical Co., Ltd.

                             201410845734.X Vertical parting injection molding machine, Baoding Weier Foundry Machinery Co., Ltd.

                             201710949814.3 Pressure sensitive adhesive composition, preparation method and tape, Zhejiang Haichuang Medical Device Co., Ltd.

                             201621405859. 1 Cold shrink accessories rapid expansion equipment, Dingyang Zhidian Huifu Technology Co., Ltd.

                             201710478718.5 Automobile semi-floating semi-shaft waste heat quenching automatic production line and its quenching process, Baoding Huajian Machinery Co., Ltd.