On November 17-12.16, 2014, Li Ji, the head of the company, went to the United States to attend a high-level training course on intellectual property rights in 2014. During this period, he trained and exchanged with Houston University, Morgan Law Office, the U.S. Patent and Trademark Office and the U.S. Supreme Court on U.S. patents, trademarks, copyright and trade secrets. Through the study of intellectual property knowledge in the United States, the knowledge of intellectual property knowledge and intellectual property environment in the United States has been effectively increased, and a good foundation has been laid for the effective development of intellectual property business in the United States.