Drafting, filing and prosecuting Chinese national patent applications, PCT patent applications,
     Hong Kong patent applications, and Macao patent applications;

 Filing request for the reexamination and invalidation of patents;

 Advising on patent validity and patent infringement;

 Providing patent search and watching services;

 Filing patent applications in foreign countries;

 Advising on strategies for patent protection;

 Annuity and maintenance management;

 Translation of technical and legal documents.