Ms.  Xian Du graduated from Beijing Institute of Technology in 2010. In 2014, she joined the China Council for the Promotion of International Trade (CCPIT) Patent and Trademark Office, where she has been providing patent prosecution services. Her practice areas cover organic chemistry, medicinal chemistry, pharmaceutics, traditional Chinese medicine, pesticides, and related fields. Ms. Du focuses on serving domestic clients and assists enterprises in developing global patent portfolios. She is experienced in drafting patent applications, responding to office actions, handling reexamination and invalidation proceedings, and managing overseas patent filings.