https://patentbrief.org/company/hovercraft-development-ltd Plain-English explanations of patents assigned to Hovercraft Development Ltd, newest first. en-us Sat, 13 Jun 2026 10:06:21 GMT https://patentbrief.org/patent/us/3321037/hovercraft-cockerell This patent describes a gas-cushion vehicle, or hovercraft, that uses a specific arrangement of flexible walls to contain a cushion of pressurized gas and separate foreign matter from the escaping air. Tue, 23 May 1967 00:00:00 GMT https://patentbrief.org/patent/us/3321037/hovercraft-cockerell