Patents by Inventor Paulo Cesar Cardoso FERREIRA

Paulo Cesar Cardoso FERREIRA 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).

  • Auxiliary device for lowering a tool into a well
    Patent number: 11408238
    Abstract: The present invention relates to an auxiliary device for lowering at least one tool into a well, the auxiliary device comprising a main body configured to at least partially envelope an upper portion of the tool, wherein the main body comprises: a bottom opening configured to allow passage of the tool; and a top opening configured to block passage of the tool and allow passage of the cable supporting the tool.
    Type: Grant
    Filed: August 14, 2018
    Date of Patent: August 9, 2022
    Assignee: PETRÓLEO BRASILEIRO S.A.—PETROBRAS
    Inventors: Jose Soares de Miranda Junior, Orman Salvador Toscano, Paulo Cesar Cardoso Ferreira, Humberto de Oliveira Reis
  • AUXILIARY DEVICE FOR LOWERING A TOOL INTO A WELL
    Publication number: 20210025254
    Abstract: The present invention relates to an auxiliary device for lowering at least one tool into a well, the auxiliary device comprising a main body configured to at least partially envelope an upper portion of the tool, wherein the main body comprises: a bottom opening configured to allow passage of the tool; and a top opening configured to block passage of the tool and allow passage of the cable supporting the tool.
    Type: Application
    Filed: August 14, 2018
    Publication date: January 28, 2021
    Applicant: PetrÓleo BrasilEiro S.A. -PetroBras
    Inventors: Jose Soares de MIRANDA JUNIOR, Orman Salvador TOSCANO, Paulo Cesar Cardoso FERREIRA, Humberto de OLIVEIRA REIS