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Lloyd Groff Copeman was born on 28 December, 1881. He was a creative American inventor who invented the first electric stove and the flexible rubber ice cube tray, among other products. He studied engineering from the former Michigan Agricultural College, now has become Michigan State University in East Lansing, Michigan. Even if he is not very well known today, he developed many inventions and thoughts that benefited a lot of people. He has almost seven hundred patents in his name.
His first winning patented invention was in 1909. During the year 1918, Copeman established a company whose name was Copeman Laboratories Company. He earned so much money from his inventions. One day, he told his grandson that he could easily find one of his inventions if he could walk to any store. Some of the important patents are thermostat and thermometer, electric switch, toaster and many more. He passed away on 5 July, 1956.