Patents by Inventor Sergio R. C. Mueller

Sergio R. C. Mueller 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).

  • Jack-up rig for marine drilling
    Patent number: 4269542
    Abstract: This invention relates to a mobile drilling platform of the jack-up type equipped with a special system which allows the said drilling platform to work as a drilling derrick and alternatively as a hoisting crane rig for marine service.
    Type: Grant
    Filed: June 18, 1979
    Date of Patent: May 26, 1981
    Assignee: Petroleo Brasileiro S.A. - Petrobras
    Inventor: Sergio R. C. Mueller