This folder contains correspondence and other documents relating to foreign and domestic patent applications, patent litigation, and other patent matters. Among the items for 1910 are letters concerning federal patent legislation; Edison's involvement in the patent activities of his Legal Department; and various storage battery, cement, and phonograph patents. Many of the letters are to or from Frank L. Dyer, president and general counsel of the National Phonograph Co. Also included is a 21-page report containing abstracts of patent applications abandoned by Edison during the period 1876-1885. A draft of this report, in the hand of William H. Meadowcroft, appears in Thomas A. Edison Papers, Part I (1850-1878).

Approximately 20 percent of the documents have been selected. The items not selected include routine letters of inquiry, receipts, correspondence concerning accounts with attorneys, letters of transmittal and acknowledgment, and items that duplicate information in selected material.