This folder contains correspondence and other documents relating to foreign and domestic patent applications, assignments, litigation, legislation, and other patent matters. The correspondents for 1917 include Edison employee Albert F. Wurth and William H. Mason, who had recently resigned from his position as Edison's chief chemical engineer.

Approximately 40 percent of the documents have been selected. The unselected items are unsolicited inquiries that received no substantive reply.

Courtesy of Thomas Edison National Historical Park.