The U.S. Patent Statistics Chart Calendar Years 1963 - 2019 (mirror) distinguish Applications of "U.S. Origin" from Applications of "Foreign Origin".
What counts as patents of "Foreign Origin" in the USPTO statistics? For example, if for a given patent 1 assignee is located outside the United States and 1 assignee is located in the United States, does that count as a patent of "Foreign Origin" or a patent of "U.S. Origin"?