Antoine-Padoue Filippi

Antoine-Padoue Filippi was a French aero inventor, of the Seine region, working a great deal with propulsion, and lift, his "système Filippi" of propellers playing a general role, and being suggestively included in 1915 French Patent co-registered with Henri Boutigny, said patent having to do with a structure designed to support similar types of arrayed propellers.

Patents whose inventor or applicant is Antoine-Padoue Filippi

• Patent US-1907-920554 (English title: Surface of ascension or aeroplane for flying-machines, Filing date: 1907-09-10)
• Patent FR-1907-369937.8219 (English title: Improvements in a lift surface applicable to craft having the ability to lift, sustain, and direct themselves in the air, Supplementary to patent: Patent FR-1906-369937, Filing date: 1907-09-21)
• Patent FR-1900-304366 (English title: 'Cyclone' apparatus for aerial navigation)
• Patent GB-1900-19199 (English title: Aerial Navigation, Filing date: 1900-10-26)
• Patent FR-1902-326727 (English title: Craft meant to be able to lift, sustain, and direct itself in the air, Filing date: 1902-11-27)
• Patent AT-1902-14015 (English title: Dirigible flying machine, Supplementary to patent: Patent FR-1902-326727, Filing date: 1902-12-06)
• Patent IT-1902-65889 (Supplementary to patent: Patent FR-1902-326727, Filing date: 1902-12-11)
• Patent HU-1903-29342 (English title: Aircraft, actually quite likely a helicopter, Supplementary to patent: Patent FR-1902-326727, Filing date: 1903-01-23)
• Patent GB-1905-371 (English title: Propellers, Filing date: 1905-01-07)
• Patent FR-1906-369937 (English title: Improvements to an ascension surface applicable to machines designed to have the ability to lift themselves, sustain themselves, and to navigate in the air, Supplementary to patent: Patent FR-1902-326727, Filing date: 1906-09-22)
• Patent GB-1908-20917 (Supplementary to patent: Patent FR-1906-369937)
• Patent FR-1907-379553 (English title: Ventilator, Supplementary to patent: Patent FR-1906-369937, Filing date: 1907-04-30)
• Patent ES-1907-41537 (English title: Surface of ascension used to elevate, sustain, and move apparatus through the air, Supplementary to patent: Patent FR-1906-369937, Filing date: 1907-08-31)
• Patent IT-1907-91329 (English title: Improvements to an ascension surface applicable to machines designed to have the ability to lift themselves, sustain themselves, and to navigate in the air, Supplementary to patent: Patent IT-1902-65889 • Patent FR-1902-326727, Filing date: 1907-09-14)
• Patent CH-1907-41856 (English title: Propeller to raise or sustain apparatus in the air, Supplementary to patent: Patent FR-1906-369937, Filing date: 1907-09-19)
• Patent IT-1908-98096 (English title: Improvements to an ascension surface applicable to machines designed to have the ability to lift themselves, sustain themselves, and to navigate in the air, Supplementary to patent: Patent FR-1902-326727 • Patent IT-1907-91329 • Patent IT-1902-65889, Filing date: 1908-09-28)
• Patent FR-1909-401714 (English title: Organ of propulsion, that is, propeller, Filing date: 1909-04-06)
• Patent GB-1909-15656 (English title: Improvements in or relating to Propellers and the like, Supplementary to patent: Patent FR-1909-401714, Filing date: 1909-07-05)
• Patent FR-1910-424987 (English title: Propeller applicable to aerial and nautical navigation, Filing date: 1910-03-26)
• Patent ES-1910-47761 (English title: An organ of propulsion, Supplementary to patent: Patent FR-1909-401714, Filing date: 1910-04-06)
• Patent HU-1910-56348 (English title: Drive, that is, work with propellers, Supplementary to patent: Patent FR-1909-401714, Filing date: 1910-04-06)
• Patent US-1911-1078270 (English title: Screw-propeller, Filing date: 1911-03-24)
• Patent ES-1911-50145 (English title: A propeller applicable to air and water navigation, Filing date: 1911-03-24)
• Patent HU-1911-57315 (English title: Air and water screw, Filing date: 1911-03-25)
• Patent GB-1911-7586 (English title: Propellers for aerial and nautical navigation, Supplementary to patent: Patent FR-1910-424987, Filing date: 1911-03-27)
• Patent FR-1911-442628 (English title: Improvements to surfaces of lift and propulsion applicable to both sea and air navigation, Filing date: 1911-06-24)
• Patent FR-1911-424987.15884 (English title: propeller applicable to aerial and nautical navigation, Supplementary to patent: Patent FR-1902-326727 • Patent FR-1906-369937 • Patent FR-1910-424987 • Patent FR-1907-379553 • Patent FR-1908-386306 • Patent FR-1909-401714, Filing date: 1911-07-24)
• Patent FR-1911-424987.15929 (English title: Propeller applicable to both air and marine navigation, Supplementary to patent: Patent FR-1910-424987, Filing date: 1911-09-30)
• Patent FR-1911-424987.15931 (English title: Propeller applicable to aerial and marine navigation, Supplementary to patent: Patent FR-1910-424987, Filing date: 1911-12-30)
• Patent US-1914-1103188 (English title: Driving and sustaining surfaces applicable to navigation in air and water, Filing date: 1912-06-24)
• Patent FR-1912-442628.17047 (English title: Improvements to propulsion and lift surfaces applicable to aerial and marine navigation, Supplementary to patent: Patent FR-1912-442628, Filing date: 1912-03-20)
• Patent GB-1912-14736 (English title: Improvements in Driving and Sustaining Surfaces applicable to Navigation, in Air and Water, Supplementary to patent: Patent FR-1911-442628, Filing date: 1912-06-24)
• Patent HU-1912-64452 (English title: Improvements in air and water propulsion, Filing date: 1912-06-25)
• Patent AU-1912-6224 (English title: Driving and sustaining surfaces applicable to navigation, in air and water, Filing date: 1912-08-27)
• Patent GB-1912-29170 (English title: Aerial and marine propeller, Supplementary to patent: Patent FR-1910-424987 • Patent FR-1911-424987.15931, Filing date: 1912-12-18)
• Patent FR-1914-474917 (English title: Propeller system applicable to aerial and nautical navigation and to wheeled(land-roadway) propulsion, Filing date: 1914-01-05)
• Patent FR-1915-512095 (English title: Apparatus and method for manufacturing, by clamping and molding on a die, propellers of the Filippi system or the like, Filing date: 1915-06-17)
• Patent GB-1916-126988 (English title: Process and Apparatus for the Manufacture of Propellers by Pressing and Moulding upon a Matrix, Supplementary to patent: Patent FR-1915-512095, Filing date: 1916-06-30)
• Patent FR-1919-510190 (English title: Propeller of high power and efficiency, Filing date: 1919-07-12)

There seems to be a rather profound complex here, with strictly aerial work, with propellers, building upon itself, and borrowing as well from his own work in tech areas such as ventilation. Inter-patent referencing is fairly extreme, with nations such as Spain and Australia factoring into the nations in whose offices patents were filed.

Espacenet repeat inquiry on Filipi 1900-1920, prompted initially by references found within Patent FR-1912-424987.15884. He seems to have been more prolific than we had known . . . We are working on it!