Lucien Lévy (11 March 1892 – 24 May 1965) was a French radio engineer and radio receiver manufacturer.
He invented the superheterodyne method of amplifying radio signals, used in almost all AM radio receivers.
His patent claim was at first disallowed in the United States in favour of the American Edwin Howard Armstrong, but on appeal Lévy's claim as inventor was accepted in the US.
Léon Serpollet (4 October 1858 – 1 February 1907) was a French engineer and developer of flash steam boilers and steam automobiles.
Léon Serpollet was born in Culoz, in the Ain department of France in 1859, son of the carpenter Auguste Serpollet. He went into the family business with his brother Henri (1848–1915) producing circular saws and wood working machines. It was when seeking to power their workshops that Henri came up with the idea of flash steam generation, with a patent applied for on 25 October 1879.
Leon went to Paris to study engineering at the Conservatoire national des arts et métiers, and at the same time he continued to develop the flash steam concept with his brother by post. In 1886 the two brothers arrived at their best design of flash steam boiler, and then shortly afterwards they went into business building flash steam boilers, initially small scale to power lighting systems and pumps, but soon to power tricycles and steam boats, and eventually to cars, trams, and buses.
Not only was Léon Serpollet a talented engineer, but he also drove his own cars in various races and rallies, for in the first years of the 20th century his steam cars were faster than any internal combustion engine cars, as he proved when he took the world land speed record in 1902 at Nice promenade at 120.80 km/h.
Serpollet's steam cars meant he had contact with many distinguished customers, including the future King Edward VII, the Maharajah of Mysore, and the Shah of Persia - Mozaffar ad-Din Shah Qajar, who in 1900 conferred on him the Order of the Lion and the Sun. In 1900 he was made a Chevalier of the Legion of Honour.
Leon Serpollet died aged 48 of a 'malignant disease', and with his passing the interest in steam cars seemed to wane, especially in France, there were no steam cars on show at the Paris Salon automobile show of 1908. His influence on the automotive industry had been substantial as stated in many obituaries, for example "The death of M. Leon Serpollet has removed from our midst a pioneer in the motor industry, whose genius in the cause of automobilism can only be compared to that of Stephenson for the locomotive"...."The death of M. Serpollet is a heavy loss to the industry." In another obituary "M. Serpollet's name has been for a score of years as well known in the world of the steam motor-car as is that of Marquis de Dion in the region of internal combustion vehicles".
Léon Serpollet is commemorated by a statue by Jean Boucher at the Place Saint-Ferdinand (48.877969°N 2.288112°E / 48.877969; 2.288112) in Paris' 17th arrondissement, and the Parc Léon Serpollet (48.89228°N 2.33831°E / 48.89228; 2.33831) in its 18th arrondissement.
Guy Degrenne (3 August 1925 – 7 November 2006) was a French businessman who specialised in cutlery and silverware. He has founded the Guy Degrenne group, since 1987 a subsidiary of holding 'Table de France'.
André Jules Michelin (16 January 1853 – 4 April 1931) was a French industrialist who, with his brother Édouard (1859–1940), founded the Michelin Tyre Company (Compagnie Générale des Établissements Michelin) in 1888 in the French city of Clermont-Ferrand.
In 1900, André Michelin published the first Michelin Guide, the purpose of which was to promote tourism by car, thereby supporting his tyre manufacturing operation.
In 1886, 33-year-old André Michelin abandoned his career as a successful Parisian engineer to take over his grandfather's failing agricultural goods and farm equipment business. Established in 1832,"Michelin et Cie" suffered from neglect and was on the verge of insolvency following the founder's death. Michelin's grandfather had started the company that sold farm equipment and an odd assortment of vulcanized rubber products, such as belts, valves and pipes. As soon as André took the helm of the company, he recruited his younger brother Édouard to join him at the company. Édouard was named the company's managing director. While duly committed to the success of the business, neither brother had any prior experience selling goods or had the slightest idea where to even begin.
In 1889, a cyclist familiar with the Michelin Company approached Édouard with his flat tyre seeking assistance. Getting a flat tyre frequently meant cyclists were left stranded for hours. In the late 1880s, cycling was becoming a popular form of transportation and hobby due in large part to John Dunlop's 1888 patent for the inflatable bicycle tyre. Before Dunlop's invention, bicycle tyres were made out of solid rubber. The solid rubber tyres tended to provide little traction and made for a difficult and uncomfortable ride.
After the hapless cyclist approached the Michelin Company for assistance, Édouard took great interests in the new pneumatic tyres. The Michelins recognized that there would be a great demand for pneumatic tyres if only there was a way to more quickly make repairs. They reasoned that first the wheel must become detachable. Édouard conducted a series of experiments and developed a number of prototypes. In 1891, he was granted a patent for a detachable tire.
André and his brother Édouard were inducted into the Automotive Hall of Fame in Dearborn, Michigan in 2002.
Jean Dollfus (September 25, 1800 – 21 May 1887) was a French industrialist who grew a textile company, Dollfus-Mieg et Compagnie (D.M.C.), in Mulhouse. Dollfus was a leading figure in a philanthropic society which constructed a company town that sold houses at cost to the town's workers. Dollfus also helped publish an encyclopedia of needlework.
Émile Dewoitine (26 September 1892 – 5 July 1979) was a French aviation industrialist.
Dominique Ponchardier (March 3, 1917, Saint-Étienne – April 17, 1986, Nice) was a French author and screenwriter who had been a member of the French Resistance during World War II, and later held positions as an intelligence officer, diplomat, colonial administrator and company president. He was a long-standing follower of Charles de Gaulle, at different times working for him in underground, intelligence, political, civil and diplomatic capacities.
Marcel Dassault (born Marcel Ferdinand Bloch; 23 January 1892 – 17 April 1986) was a French engineer and industrialist who spent his career in aircraft manufacturing.