Mr. Zhang is very good at handling difficult and complex cases in litigation fields of trade mark, copyright (computer software, protection of music and audiovisual products), unfair competition (protection of famous commodity and commercial secrets), and has accumulated rich experience in lawyer’s profession. Mr. Zhang has made efforts to safeguard rights and defused disputes by handling lots of intellectual property cases based on spirits of integrity, respect and friendliness.Since 2009, six IP cases represented by Zhang Yazhou have been selected by the Supreme Court as one of the top ten IP cases of the year, and several other cases have been selected by provincial high courts as one of the top ten IP cases of the year.