(from the article `gasoline engine`) ...in developing an operational system, however. Finally, in 1860 Étienne Lenoir of France marketed an engine that operated on illuminating gas and ... ...called the Otto cycle, after the German Nikolaus August Otto, who designed an engine on that principle in 1876. De Rochas held prior patent...
Found on
http://www.britannica.com/eb/a-z/l/34
No exact match found.