Yajun Duan

Yajun Duan

Yajun Duan is mainly involved in preparation and representation regarding technical IP rights concerning mechanical engineering & chemistry. His fields of specialization include drafting and prosecution of patent applications, reexamination and invalidation, patent searches and counseling.

Mr. Duan is highly experienced in handling domestic and international patent cases.

Qualifications

Chinese patent attorney (admitted in 2017)

Professional Experience  

2019 – present

Sonderhoff & Einsel (Beijing) Patent Agency Office

2016 – 2019

Jiaquan IP Law

Education

2013-2016

Wuhan University, Master’s degree in Analytical Chemistry

2009-2013

Tangshan Normal College, Bachelor’s degree in Applied Chemistry

Languages

Chinese, English