Patents by Inventor Roger Vieira Witter

Roger Vieira Witter 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).

  • Highly resilient, non-structural floating roof for tanks for storing liquids
    Patent number: 6193092
    Abstract: The present invention relates to a floating roof (1) with non-structural characteristics, which basically comprises a peripheral ring (7) formed by the joining of a plurality of plates and which has a plurality of floats (2), and a central platform (8) formed by the joining of a plurality of floats (2), and a central platform (8) formed by the joining of a plurality of plates and which has floats (2).
    Type: Grant
    Filed: May 15, 1998
    Date of Patent: February 27, 2001
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventor: Roger Vieira Witter