The Telephone Cases, 126 U.S. 1 (1888), were a series of US court cases in the 1870s and the 1880s related to the invention of the telephone, which culminated in the 1888 decision of the US Supreme Court upholding the priority of the patents belonging to Alexander Graham Bell. Those telephone patents were relied on by the American Bell Telephone Company and the Bell System although they had also acquired critical microphone patents from Emile Berliner. In the case, the Supreme Court affirmed: The Supreme Court reversed American Bell Tel Co. v. Molecular Tel. Co., 32 F. 214.