Patents by Inventor Mainhardt Bredt

Mainhardt Bredt has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Controlled air film hull for watercraft
    Patent number: 4031841
    Abstract: A planing hull for high speed water-craft polysectionally contoured to provide a simple deep vee bow section that develops functionally from a compound vee section to a flattened base at the step-lift having controlled air film supply to break the step-lift generated vacuum and to provide an air film support and pathway for a trailing-and-air-film-confining hull portion after the step-lift.
    Type: Grant
    Filed: June 30, 1975
    Date of Patent: June 28, 1977
    Assignee: Bredt-Kat, Inc.
    Inventor: Mainhardt Bredt