Recently, our firm won the first instance of an administrative litigation case for invalidation of an invention patent, in which it is ruled that the invention patent should be comp...
Introduction In the chemical field, it is difficult to seek invalidation of a patent claiming to have achieved unexpected technical effect. This case provides a strategy for success...
Mr. Chixue WEI was invited to CTA's 30th anniversary symposium
Mr. Chixue WEI, with 50-year experience in trademark agency profession, was invited to attend the symposium commemorating the 30th anniversary of Chinese Trademark Association's establishment.
