H. Kirchhofer

Swiss patent agent H. Kirchhofer filed Patent CH-1909-50001 with the note "vormals Bourry-Séquin & Co., Zürich" – formerly Bourry-Séquin & Co., Zurich. This might mean that the firm changed its name, or conceivably that H. Kirchhofer used to work for them.

Patents for which H. Kirchhofer was the patent agent

• Patent CH-1907-41856 (Inventors: Antoine-Padoue Filippi, English title: Propeller to raise or sustain apparatus in the air, Supplementary to patent: Patent FR-1906-369937)
• Patent CH-1907-42977 (Inventors: Alonzo Perry Bliven, English title: Aerostat, Supplementary to patent: Patent US-1906-850616)
• Patent CH-1909-48177 (Inventors: Arthur Henry Edwards • Martin Diederich Rucker, English title: Aviation equipment, Supplementary to patent: Patent GB-1908-4519)
• Patent CH-1909-50001 (Inventors: Adrian Baumann, English title: Rigid, disassemblable Airship, Supplementary to patent: Patent DE-1908-221155)
• Patent CH-1910-54259 (Inventors: Adrian Baumann, English title: Rigid, disassemblable airship, Supplementary to patent: Patent CH-1909-50001)
• Patent CH-1910-56204 (Inventors: Louis Brennan, English title: Device with gyroscope to give stability to inherently unstable objects, Supplementary to patent: Patent GB-1909-26034)
• Patent CH-1911-56205 (English title: Propulsion system for airships, watercraft, and the like, Applicant firm: Luftschiffsantrieb G.m.b.H.)
• Patent CH-1914-69586 (Inventors: George Raymond Lawrence, English title: Airplane, a quite elaborate system and design, military, inclusive of parachute, Supplementary to patent: Patent US-1913-04-21 George Raymond Lawrence)
• Patent CH-1914-70083 (Inventors: George Sutherland Dodman, English title: Motor-airship, Supplementary to patent: Patent GB-1913-16499)
• Patent CH-1915-76034 (Inventors: Hans Hermann Hocke • John Arthur Weis, English title: Airplane)