April Hu
Patent Attorney

April Hu is a senior patent agent at Changtsi. She has more than 10 years of work experience in Chinese patent practice. She has been practicing in a variety of technical fields, such as chemistry, pharmacy, materials, semiconductor devices and display. Over the past decade, April has worked on a large volume of projects, including more than 500 Chinese patent applications, about 50 PCT applications, over 300 OA responses, and plenty of cases before Patent Reexamination and Invalidation Board. Other than patent prosecution, April also provides consultation for both domestic and foreign clients. Due to both her rich experiences and PhD degree on Chemistry, April has become one of our leading patent professionals, and her work has been highly recognized by her clients.

+86 10 88369999-6124
Patent Prosecution

Technical Fields

  • Chemistry
  • Biochemistry
  • Pharmacy
  • Materials
  • Nanotechnology
  • Electrochemistry and Biosensors
  • Energy Storage Devices
  • Semiconductor Devices
  • Display Field

Professional Experiences

  • Patent Agent, Chang Tsi & Partners
  • Patent Agent, Tsingyihua Intellectual Property LLC

Representative Clients

  • Midea Group 
  • BYD Company 
  • BOE Technology Group 
  • Guangdong Oppo Mobile Telecommunications Corp


  • Doctor of Inorganic Chemistry (Nano-Materials), Beijing institute of Technology, Beijing, China
  • Bachelor of Chemistry and Molecular Engineering (Marine Science), Qingdao University of Science and Technology, Shandong, China

Bar Admission

  • China Patent Bar


  • Mandarin 
  • English