Sikorsky Aircraft Corp — New Patents | PatentBrief https://patentbrief.org/company/sikorsky-aircraft-corp Plain-English explanations of patents assigned to Sikorsky Aircraft Corp, newest first. en-us Sat, 13 Jun 2026 10:14:27 GMT Igor Sikorsky's Early Design for a Vertical Takeoff Aircraft https://patentbrief.org/patent/us/1994488/helicopter-sikorsky A 1935 patent by aviation pioneer Igor Sikorsky detailing a mechanical configuration for an aircraft capable of direct vertical lift. Tue, 19 Mar 1935 00:00:00 GMT https://patentbrief.org/patent/us/1994488/helicopter-sikorsky