Global Collaborative Patents, William R. Kerr, Paper. “We study the prevalence and traits of global collaborative U.S. patents for U.S. public companies, deÖned to be patents with at least one inventor inside the United States and one abroad. Collaborative patents are frequently observed when a U.S. public company is entering into a new foreign region for innovative work, especially in less developed settings where intellectual property protection is weak. Collaborative patents are also more frequent when the U.S.-based workforce of the Örm has a strong ethnic component to it…” Link