Dupont et Elluin

French patent agency Dupont et Elluin was at address 42 boulevard Bonne-Nouvelle, 10th arrondissement, Paris.

H. Elluin seems to have done some solo work as a patent agent, before this partnership was established. We also have a V. Dupont, with Arkady Iospé using this agent in Patent FR-1909-409319 before using Dupont et Elluin in Patent FR-1910-409319.12220‎.

Patent FR-1908-397517 of inventor Gaston Vinet uses patent agent H. Elluin and Patent FR-1909-397517.11825‎ uses patent agent Victor Dupont.

Patents for which Dupont et Elluin was the patent agent

• Patent FR-1910-409319.12220 (Inventors: Arkady Iospé, English title: Airplane, Supplementary to patent: Patent FR-1909-409319)
• Patent FR-1910-407411.13404 (Inventors: Félix Michau, English title: Ornithopter)
• Patent FR-1910-416542 (Inventors: Henri-Marie Coandă, English title: Support surface for flying machines)
• Patent FR-1910-418401 (Inventors: Henri-Marie Coandă, English title: Improvements in airplanes)
• Patent FR-1911-419561 (Inventors: François André don Simoni)
• Patent FR-1911-422051 (Inventors: Henry Valentin, English title: Vehicle thruster)
• Patent FR-1911-428978.14208 (English title: Improvements brought to the establishment (formulation) and construction of dirigibles, Supplementary to patent: Patent FR-1911-428978, Applicant firm: Société anonyme Astra AB)
• Patent FR-1911-441144.15849 (Inventors: Henri-Marie Coandă, English title: cert d'addition to refinements to aviation devices and particularly in aeroplanes with distinct centers, Supplementary to patent: Patent FR-1911-441144)
• Patent FR-1913-446246.16546 (Inventors: Henri-Marie Coandă, English title: Improvements in the means used in aeronautical construction and "architecture" (design), Supplementary to patent: Patent FR-1911-446246)
• Patent FR-1913-431691.18178 (Inventors: Pierre Audibert, English title: Parachute applicable to aviation, Supplementary to patent: Patent FR-1911-431691)
• Patent FR-1911-424781 (Inventors: Isaac Henry Storey, English title: Improvements to flying machines, Supplementary to patent: Patent GB-1910-885)
• Patent FR-1911-428978 (English title: Refinements to the design and construction of balloons, Applicant firm: Société anonyme Astra AB)
• Patent FR-1911-431691 (Inventors: Pierre Audibert, English title: Parachute applicable to aviation)
• Patent FR-1911-435983 (Inventors: Pierre-Romain Rivière, English title: Improvements in airplane landing chassis)
• Patent FR-1912-443531 (Inventors: Henri-Marie Coandă, English title: Explosion drive turbine)
• Patent FR-1911-446246 (Inventors: Henri-Marie Coandă, English title: Improvements in the means used in aeronautical construction and "architecture" (design))
• Patent FR-1911-448337 (Inventors: Henri-Marie Coandă, English title: Monoplane)
• Patent FR-1911-449265 (Inventors: Henri-Marie Coandă, English title: Means for the armament of air-ships and the establishment of combat cohesion)
• Patent FR-1912-449265.17540 (Inventors: Henri-Marie Coandă, English title: Means for the armament of air-ships and the establishment of cohesion of combat, Supplementary to patent: Patent FR-1911-449265)
• Patent FR-1912-449265.17585 (Inventors: Henri-Marie Coandă, English title: Means for the armament of air-ships and the establishment of cohesion of combat, Supplementary to patent: Patent FR-1911-449265)
• Patent FR-1912-411204.17625 (English title: Suspension arrangement to facilitate the departure and landing of airplanes, Supplementary to patent: Patent FR-1909-411204, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1912-459266.17804 (Inventors: Auguste Brieussel, English title: Air-ship, Supplementary to patent: Patent FR-1912-459266)
• Patent FR-1912-431691.15593 (Inventors: Pierre Audibert, English title: Parachute applicable to aviation, Supplementary to patent: Patent FR-1911-431691)
• Patent FR-1912-458295.18234 (Inventors: Société Anonyme des Établissements Nieuport, English title: New material and methods of aircraft construction and products resulting from their use and application, Supplementary to patent: Patent FR-1912-458295, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1912-440087 (Inventors: Angel-Félix Philiponeau • Marie-Joseph-Adrien-Maurice de Brisson de Laroche, English title: Method and viewing apparatus for evaluating aircraft speed relative to the ground)
• Patent FR-1912-443286 (Inventors: Andrée Huberth de Nayszombat • Félix de Gérando, English title: Flying machine, featuring extraordinary work with propellers)
• Patent FR-1912-444956 (Inventors: George Brougham Hubert Austin, English title: aeroplane with automatic stabilization, Supplementary to patent: Patent AU-1911-510)
• Patent FR-1912-454621 (Inventors: Veuve Deniéport née Jeanne-Marie-Anna Loubens, English title: Fixing system for shrouds or tensioners of aeronautical devices)
• Patent FR-1912-454622 (Inventors: Veuve Deniéport née Jeanne-Marie-Anna Loubens, English title: Improvements to airplanes, in order to reduce bulk during storage or transport)
• Patent FR-1912-457635 (Inventors: Auguste Brieussel, English title: Stabilization method for aerial or other vehicles)
• Patent FR-1912-458295 (English title: New material and methods of aircraft construction and products resulting from their use and application, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1912-459266 (Inventors: Auguste Brieussel, English title: Air-ship)
• Patent FR-1913-411204.18303 (English title: Suspension device to facilitate takeoff and landing of airplanes, Supplementary to patent: Patent FR-1909-411204, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1913-455741 (Inventors: Alfred E. Wunderlich, English title: Glider wings with rotational and parallel motion)
• Patent FR-1914-465076 (Inventors: Henri-Marie Coandă, English title: Improvements in airplanes, Supplementary to patent: Patent GB-1912-7553 • Patent GB-1912-26911 • Patent FR-1911-448337, Applicant firm: British and Colonial Aeroplane Co.)
• Patent FR-1914-465764 (English title: Double differential control for aircraft or other vehicles, Applicant firm: Établissements Nieuport)
• Patent FR-1914-466405 (Inventors: Henri-Marie Coandă, English title: Improvements in airplanes, Supplementary to patent: Patent GB-1912-7553 • Patent GB-1912-26911 • Patent FR-1911-448337, Applicant firm: British and Colonial Aeroplane Co.)
• Patent FR-1913-473455 (Inventors: Louis Revault, English title: Process and implements for the launching of projectiles from aircraft)
• Patent FR-1914-474621 (Inventors: Henri-Marie Coandă, English title: Improvements to multiplanes)
• Patent FR-1914-473455.19711 (Inventors: Louis Revault, English title: Process and apparatus for implementing the launching of projectiles from aircraft, Supplementary to patent: Patent FR-1913-473455)
• Patent FR-1914-469830 (Inventors: Henri-Marie Coandă, English title: hydroplane, Supplementary to patent: Patent GB-1914-6299)
• Patent FR-1914-471839 (Inventors: Henri-Marie Coandă, English title: Improvements in airplane landing, Supplementary to patent: Patent GB-1914-04-25 Coandă having specifically to do with landing)
• Patent FR-1915-475052 (Inventors: Louis Boudreaux, English title: Parachute with multiple surfaces)
• Patent FR-1915-475610 (English title: Helicopter with a single lift blade, Applicant firm: Nieuport des ETS)
• Patent FR-1915-475950 (Inventors: Société anonyme Astra AB, English title: Process and apparatus for regulating suspension gear used in aviation, Applicant firm: Société anonyme Astra AB)
• Patent FR-1915-477321.20756 (English title: Rigid control device for airplanes, Supplementary to patent: Patent FR-1915-477321, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1915-477457 (English title: New airplane, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1916-492699.22249 (English title: Removable bracket for aviation engine hood, Supplementary to patent: Patent FR-1916-492699, Applicant firm: Clerget, Blin and Cie)
• Patent FR-1916-492699 (English title: Removable bracket for aviation engine hood, Applicant firm: Clerget, Blin and Cie)
• Patent FR-1916-502680 (English title: Improvements to airplanes, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1920-503610 (English title: Improvements for biplanes, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1921-515011 (Inventors: Édouard Bertrand, English title: Improvements to aeroplane wings)
• Patent FR-1918-405961.24363 (Inventors: Lucien Chauvière, English title: Improvements in the construction of wooden aerial propellers, with multiple wings, Supplementary to patent: Patent FR-1908-405961)

Patents for which H. Elluin was the patent agent

• Patent FR-1909-385120.10101 (Inventors: Édouard Surcouf, English title: stabilizing empennage(tail-fin) for dirigible balloons, Supplementary to patent: Patent FR-1907-385120)
• Patent FR-1909-395168 (English title: obdurator(?) system of aerostatic valve, Applicant firm: Société anonyme Astra AB)
• Patent FR-1908-397517 (Inventors: Gaston Vinet, English title: Improved airplane apparatus)
• Patent FR-1909-397651 (English title: Propelling device perfected for aeronautical apparatus, Applicant firm: Société anonyme Astra AB)
• Patent FR-1908-407411 (Inventors: Félix Michau, English title: Ornithopter)
• Patent FR-1909-399403 (Inventors: Joseph Kieffer, English title: Device for automatic equilibrium on aeroplanes)
• Patent FR-1909-399435 (Inventors: Frederic-Charles Rossel, English title: Device for changing altitude of airplanes by altering the angle of the lift planes)
• Patent FR-1909-401247 (Inventors: Camille Bollée, English title: Devices for Maintaining the Equilibrium of Aeroplanes)
• Patent FR-1909-401593 (Inventors: Auguste Brieussel, English title: Jousting game, with knights on elevated tracks)

Patents for which V. Dupont was the patent agent

• Patent FR-1909-409319 (Inventors: Arkady Iospé, English title: Airplane)
• Patent FR-1910-410207 (Inventors: Michel de Zelensky, English title: Airplane support)

Patents for which Victor Dupont was the patent agent

• Patent FR-1908-393510 (English title: Improvements to log sheets of logging altimetry barometers, Applicant firm: Société anonyme Astra AB)
• Patent FR-1909-397517.11825 (Inventors: Gaston Vinet, English title: Improved airplane apparatus, Supplementary to patent: Patent FR-1908-397517)