Patents by Inventor Fernando H. Costa Filho

Fernando H. Costa Filho 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).

  • Subsea pipeline system with electrically heated flexible pipeline
    Patent number: 5289561
    Abstract: This invention refers to an electric heating system for subsea flexible pipelines (13) including the circulation of an electric current which runs through the metallic armorings (31) of the flexible pipeline (13), generating energy and dissipating a certain amount of heat to the pipeline (13) and to the fluid contained inside same, maintaining the temperature differential between the environment and the production line, so as not to interrupt the fluid flow.
    Type: Grant
    Filed: November 1, 1991
    Date of Patent: February 22, 1994
    Assignee: Petroleo Brasileiro S.A.
    Inventor: Fernando H. Costa Filho