In 1953, when Western Electric's radio equipment business was broken up by Federal antitrust regulators, Continental acquired the AM transmitter business, and with it the U.S. patent on the Doherty linear RF amplifier.
Western Electric's radio equipment division was dissolved in 1953 due to Federal antitrust actions, and Continental took over the AM transmitter operations, as well as the U.S. patent for the Doherty linear RF amplifier.