The document provides information on US patent holdings in Chinese territories including Mainland China, Hong Kong, Macao, and Taiwan. It includes figures and statistics on the number of US patent applications and grants in these regions as well as the US trade surplus in "Charges for the use of IP" with China and Hong Kong. The document was created by Dr. Muchiu Chang and provides his contact information for anyone needing the latest intelligence on over 10,000 US patent holders and their patent strength in Chinese territories.