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Pierre-Constant Hugon (1814-1885) of Hugon et Cie, Paris
See also Hugon Gas Engine
While Director of a gas company in Paris, he patented a gas engine. It was produced under licence by a number of makers. Demonstrated at the 1867 Paris Exhibition.
It sold moderately well until displaced by Otto and Langen's engine.
1867 'PUBLIC NOTICE,— Monsieur PIERRE HUGON respectfully notifies that he is NOT CONNECTED either directly or indirectly with any GAS ENGINE COMPANY, and that his sole representative and licensee for England and English Colonies is Mr. EDWARD CASPER.' ......
....'THE HUGON GAS ENGINE. No Electricity nor other complication. Sole Licensee, EDWARD CASPER, 33, Poultry. Sole Manufacturers, THOS. ROBINSON and SON, Rochdale. An Engine is constantly at work at 33, Poultry, and professional gentlemen are invited to test its power.'