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.

The name Victor Dupont also appears among witnesses, in conjunction with Chas. P. Pressly, on American patents which have Gustave Delage assigning rights to and filing in conjunction with Société Anonyme des Établissements Nieuport.

V. Dupont

Patents for which V. Dupont was the patent agent

• Patent FR-1908-401459 (Inventors: Emanuel Spreekmeester, English title: balloon basket suspension system)
• Patent FR-1908-401460 (Inventors: Emanuel Spreekmeester, English title: Steering system for airships)
• Patent FR-1909-409319 (Inventors: Arkady Iospé, English title: Airplane)
• Patent FR-1909-410207 (Inventors: Michel de Zelensky, English title: Airplane support)

Victor Dupont

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)
• Patent FR-1909-410209 (Inventors: Jacob Christian Hansen-Ellehammer, English title: Improvements in aeroplanes)

H. Elluin

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-1908-395427.10159 (Inventors: Frédéric-Charles Rossel, English title: Control system for propellers, Supplementary to patent: Patent FR-1908-395427)
• Patent FR-1909-395168 (English title: obdurator(?) system of aerostatic valve, Applicant firm: Société anonyme Astra AB)
• Patent FR-1908-395427 (Inventors: Frédéric-Charles Rossel, English title: Control system for propellers)
• 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)
• 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: Frédéric-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)
• Patent FR-1909-407698 (Inventors: Charles Dinoird, English title: Aeroplane)

Dupont et Elluin

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-1910-411811 (Inventors: Eugène Adeline, English title: Improved kite, Supplementary to patent: Patent BE-1909-01-22 Eugène Adeline)
• Patent FR-1910-416322 (Inventors: Octave Beaurain, English title: Aeroplane)
• Patent FR-1910-416542 (Inventors: Henri-Marie Coandă, English title: Support surface for flying machines)
• Patent FR-1910-416711 (Inventors: Clarence A. Tileston, English title: Control system for stabilizing or steering components for flying machines, Supplementary to patent: Patent BE-1910-01-20)
• 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)
• 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-1911-428777 (Inventors: Erich Ritter von Bernd, English title: Sustaining and propulsive surface for apparatus with pivoting wings, Supplementary to patent: Patent DE-1910-244354 • Patent DE-1907-196255)
• 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-1911-433421 (Inventors: Andre Cohen, English title: Lift method for aircraft or aeronautical apparatus and device for carrying it out)
• Patent FR-1911-433884 (English title: Nacelle suspension process on aircraft, Supplementary to patent: Patent DE-1910-11-08 Luft-Verkehrs-Gesellschaft m.b.H., Applicant firm: Luft-Verkehrs-Gesellschaft m.b.H.)
• 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-1912-443517 (Inventors: Émile Marie, English title: Swinging viewer-sighter for pilots)
• Patent FR-1912-444956 (Inventors: George Brougham Hubert Austin, English title: aeroplane with automatic stabilization, Supplementary to patent: Patent AU-1911-510)
• Patent FR-1912-447099 (Inventors: Pierre Jacomy • François Jahan, English title: Manufacturing process of metal propellers, hollow and light, Supplementary to patent: Patent DE-1911-251309)
• 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-1914-475951 (English title: Automatic balanced valve for aerial application, Applicant firm: Société anonyme Astra AB)
• Patent FR-1914-477205 (Inventors: Émile Marie, English title: Improvements to constant-wing aeroplanes)
• 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-1917-503610 (English title: Improvements for biplanes, Applicant firm: Société Anonyme des Établissements Nieuport)
• Patent FR-1917-515011 (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)