[2] In 1886 the brothers formed La Société des Moteurs Serpollet Frères in Montmartre.
[1] In 1896 Léon Serpollet patented the flash boiler, which made steam a much more practical source of power for an automobile.
[5] On July 22, 1894 four Serpollet vehicles competed in the Le Petit Journal Contest for Horseless Carriages from Paris to Rouen.
Besides being an inventor and manufacturer, Leon Serpollet became the first driver of a non-electrically powered car to hold the Land Speed Record.
His ovoid steam car Œuf de Pâques (Easter Egg) reached a speed of 120 km/h (75 mph) over the flying kilometre on the Promenade des Anglais at Nice, France on April 13, 1902, exceeding the 1899 record of Camille Jenatzy's La Jamais Contente.