Notable : Famous : Founder/ originator

Charles-Emmanuel Sédillot (18 September 1804 – 29 January 1883) was a French military physician and surgeon. He was the son of orientalist Jean Jacques Emmanuel Sédillot (1777–1832), and an older brother to historian Louis-Pierre-Eugène Sédillot.
Born in Paris, he studied surgery under Alexis Boyer and Philibert Joseph Roux. In 1836 he became professor of operative surgery at Val-de-Grâce, followed by a professorship at Strasbourg five years later.Sedillot was a pioneer of urethrotomic and gastrointestinal operations, and known for his work with dislocations and his treatment of pyaemia. He is credited with coining the term "microbe" (from micros "small" and bios "life").

Bernardino Gaetano Scorza (29 September 1876, in Morano Calabro – 6 August 1939, in Rome) was an Italian mathematician working in algebraic geometry, whose work inspired the theory of Scorza varieties.

Harald Ernst Malmsten Schering (November 25, 1880 – April 10, 1959) was a German physicist born in Göttingen. He is best known for his work in high voltage electricity and the Schering Bridge used in electrical engineering. Schering was the son of Ernst Schering, mathematician at the Göttingen Observatory. His mother came from a family of Swedish academics who worked with Ernst to translate works from French and Italian. Harald grew up with his two siblings in Göttingen and studied physics at the University of Göttingen. In 1903 he worked at the Geophysical Institute and obtained a Ph.D. in 1904 under Eduard Riecke with work on the Elster-Geitel dispersal apparatus. Beginning in 1905 he was a scientific assistant at the Physics and Technology Institute in Berlin Charlottenburg; today known as the Physikalisch-Technische Bundesanstalt (PTB). His work at the PTB under Emil Warburg primarily dealt with high voltage/high current research and development, and in 1914 he developed a measurement methodology for examining current transformers. In 1914 he was drafted into the First World War and was injured in 1916. In 1918 he became head of the high-voltage lab, succeeding Karl Willy Wagner. In 1919 he attained the title of professor at PTB with an annual salary of 4500 Marks and 1500 Marks as housing allowance. In 1924 he wrote a book on insulators in high voltage. A new institute was established in Hannover, buts construction was delayed by the war. Beginning in 1927, Schering was a professor of electrical engineering and high voltage technology at the Technical University of Hannover (today known as the Leibniz University Hannover). In 1933, he signed the Vow of allegiance of the Professors of the German Universities and High-Schools to Adolf Hitler and the National Socialistic State. He retired in 1949 but continued to work at the PTB until 1954 when Gerhard Pfestdorf took up a position to head the institution.Schering is remembered for invention of the Schering Bridge, which he developed along with Ernst Alberti is an AC bridge circuit used to measure capacitance and the dissipation factor of capacitors. Schering received a Golden Doctorate from the University of Göttingen in 1954 and an honorary doctorate from Braunschweig. He was awarded the Great Cross of Merit by the Federal Republic of Germany in 1957.

Alfred Jules Belpaire (25 September 1820 – 27 January 1893) was a Belgian locomotive engineer who invented the square-topped Belpaire firebox in 1864.
Belpaire was born in Ostend, and first studied at the Athenaeum School in Antwerp. He then became a student at the École Centrale des Arts et Manufactures in Paris, France from 1837 to 1840 where he obtained a degree in mechanical engineering.
Belpaire was then employed at the Belgian State Railways, where he worked as a mechanical engineer for more than 50 years. He was first director of the railway workshops at Mechelen and then from 1850 put in charge of all materials and based in Brussels. He first developed a firebox to burn poor quality coals and then around 1860 generalised his invention into a robust thermally efficient design which bears his name. His firebox was used in locomotives in his native Belgium and also then extensively in Britain, North America and around the world. The Belpaire firebox had an improved transfer of heat and steam production due to its greater surface area at the top. While attaching it to a boiler was more difficult due to its oblong shape, it had simpler interior bracing as an advantage.
Alfred Belpaire was one of the founders of the Congrès International des Chemins de Fer, of which he was president in 1891.He died in Schaerbeek, aged 72.

Jean Adrien Philippe (April 16, 1815, La Bazoche-Gouet, Eure-et-Loir – January 5, 1894) was a French horologist and cofounder of watchmaker Patek Philippe & Co. of Geneva, Switzerland.In 1842, Adrien Philippe invented a mechanism for watches which allowed them to be wound and set by means of a crown rather than a key. His patented invention earned him a Bronze Medal at the French Industrial Exposition of 1844 (World's Fair). At the Exhibition, Adrien Philippe first met Antoni Patek and a year later became head watchmaker at Patek & Co. in Geneva under an agreement that entitled him to one third of all company profits.
Adrien Philippe proved to be very capable at his craft and a product innovator whose value to the firm was such that by 1851 he was made a full partner and the firm began operating as Patek Philippe & Co. In 1863 he published a book in Geneva and Paris on the workings of pocket watches titled Les montres sans clef.
In 1875, Adrien Philippe commissioned a watch that he later gave his daughter, Louise, as a wedding present, which is known as the only wristwatch dating back to be owned by either Patek or Philippe. This historical watch is known as “The Watchmaker’s Daughter” and was auctioned at Sotheby’s in 2023 by the descendants of Adrien Philippe. The watch was purchased most probably by the Patek Philippe Museum though this is not confirmed and may be owned by a private collector. The wedding between Louise and Joseph Antoine Bénassy-Philippe that the watch was presented at is noted as the wedding that saved Patek Philippe by providing the company a much needed successor to Antoni Patek for the company to survive the founding generation.
His partner Antoni Patek died in 1877 and in 1891 the 76-year-old Adrien Philippe handed over the day-to-day management of the business to his son Joseph Emile Philippe and Francois Antoine Conty.Jean Adrien Philippe died in 1894 and was buried in St-Georges Cemetery in Geneva.