attorney shanghai yiping law firm (the law department of the shanghai patent & trademark law office, llc.) handled many cases in relation to patent infringement, trademark infringement, copyright infringement, customs protection for ipr, invalidation of a patent right, cancellation of a trademark, objection of a trademark, copyright registration, unfair competition, patent infringement analysis, trademark administrative litigation, and drug protection. drafted and reviewed many types of contract regarding ip, for example, trademark licensing agreement, patent licensing agreement, trademark transfer agreement, non-disclosure agreement, technology development agreement, etc. purchased domain names and trademarks. familiar with all the procedures and requirements of the court or other authorities.