This folder contains material pertaining to suits brought by Edison in the U.S. Circuit Court for the District of Maryland against the Thomas A. Edison, Jr., Chemical Co., the successor to the Edison Ink and Chemical Co. Two cases were initiated in January 1903. One involved charges of unfair competition; the other, trademark infringement. Another case initiated in October 1904 included the Edison Manufacturing Co. as a complainant. The selected items include the bills of complaint; affidavits; numerous letters exchanged between Thomas A. Edison, Jr., and Frank L. Dyer; and other correspondence regarding the progress of litigation. Also included is the decision dismissing the first suit, along with petitions, affidavits, and correspondence concerning related fraud proceedings brought by the U.S. Post Office against the chemical company.