 Over the years, Lobingier taught law at the University of Nebraska, the University of the Philippines Law School, the University of California, the Comparative Law School of China, and at the National University School of Law in Washington, D.C. (which later merged with George Washington University's law school).Lobingier's longest-lasting teaching post was with National University, where he began teaching Civil Law in 1926 and ultimately, according to his own words, he taught courses in "analytical and historical Roman Law, the Institutes of Justinian, the evolution of modern civil law, and the principles of modern civil law.