Lewis Latimer, employed at the time by Edison, developed an improved method of heat-treating carbon filaments which reduced breakage and allowed them to be molded into novel shapes, such as the characteristic "M" shape of Maxim filaments. On 17 January 1882, Latimer received a patent for the "Process of Manufacturing Carbons", an improved method for the production of light bulb filaments, which was purchased by the United States Electric Light Company. Latimer patented other improvements such as a better way of attaching filaments to their wire supports. COUNT 4
QSN1 Who developed a heat-treating method that allowed carbon filaments to be molded into shapes? ANS1 Lewis Latimer QSN2 When did Latimer patent his "Process of Manufacturing Carbons"? ANS2 17 January 1882 QSN3 Which company purchased Latimer's patent? ANS3 United States Electric Light Company QSN4 Who employed Latimer when he developed his first patent? ANS4 Edison