How We Can Help


The patent practice is HENGDU's top field. HENGDU has a special patent department, with senior partners as the head, and there are several operation groups under it. Each operation group is led by senior partner lawyer as the leader of the operation group. HENGDU patent team is composed of patent lawyers and patent agents graduated from famous science and technology colleges such as Peking University, Tsinghua University.

Our patent department has a profound understanding of the technical problems in various industries. Our practices cover all major technical areas, including telecommunications, computer, semiconductor, network technology, electronics and power, pharmaceuticals, medical devices, biology, chemistry, materials, automotive and mechanical properties.

Our clients

Angang Group, China Railway Group, Sinopec, Chinalco international, State Grid, China Mobile, China Telecom, Sinochem fertilizer, China shipbuilding power, Poly Group, Tsinghua University, Central University of Finance and economics, China University of Geosciences, information center of Ministry of ecology and environment, Huawei, Tencent, Baidu, TCL, hypergraph software, Midea, Opel, A.O.Smith, Hisense Long, Lake Electric, CNR group, JLR, BorgWarner, Great Wall Motors, BYD, Jiangsu Huajian, Beixin building materials, Mona Lisa group, DEGO building materials, TKD cable, Kimberly, Yuanda Group, Putian Yintong, Jiangsu Radio and television group, Hupu culture, LETV, Nongfu Shanquan, Dong'ejiao, Haoliyou, Jinmailang Sanwu flavor industry group, etc.

Non litigation practices

  • Patent application (including invention, utility model and Design)

  • Patent due diligence

  • FTO

  • Patent technology cooperation

  • Patent licensing and transfer

  • Patent compliance analysis

  • Patent stability and correlation analysis

  • Patent invalidation and Patent Reexamination

  • Patent portfolio management

  • Patent retrieval and monitor (including existing technology search, infringement prevention search, subject search, legal status search, patent history search and patent portfolio monitoring of competitors)

Litigation practices

  • Patent administrative litigation

  • Civil litigation of patent infringement dispute

  • Disputes over technology development contract

  • Disputes over the ownership of patent right

  • Disputes over the ownership of patent right