Patents by Inventor Gero D. Testa

Gero D. Testa 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).

  • Centralizing apparatus
    Publication number: 20080196883
    Abstract: A wellhead isolation tool including a cup mandrel and a centralizing device. The centralizing device will align the tool so that the cup seal at the lower end of the cup mandrel sealingly engages the production casing. The cup mandrel has an open bore for allowing service tools to pass therethrough unimpeded.
    Type: Application
    Filed: February 29, 2008
    Publication date: August 21, 2008
    Inventors: Gero D. Testa, Phillip Starr, Jan Bouma
  • Wellhead isolation mandrel with centralizing device
    Publication number: 20080110639
    Abstract: A wellhead isolation tool including a mandrel and a centralizing device. The centralizing device will align the tool so that the lower end of the mandrel sealingly engages the production casing. The mandrel has an open bore for allowing service tools to pass therethrough.
    Type: Application
    Filed: November 15, 2006
    Publication date: May 15, 2008
    Inventors: Phillip M. Starr, Gero D. Testa, Kevin Ray Manke