Before revision: The most widely used type of transistor is the metal–oxide–semiconductor field-effect transistor (MOSFET), the MOSFET was invented at Bell Labs between 1955 and 1960.
After revision: The most widely used type of transistor is the metal–oxide–semiconductor field-effect transistor (MOSFET), invented by a Bell Labs team under Mohamed Atalla and Dawon Kahng between 1959 and 1960.