Patents by Inventor Kevin P. Hadfield

Kevin P. Hadfield 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).

  • WELLHEAD ANNULUS SLEEVE
    Publication number: 20190277105
    Abstract: A wellhead sleeve configured to be removably mounted to a wellhead at or near an annulus of the wellhead. The wellhead sleeve has a body having a bore therethrough, a skirt mounted to the body and an actuator configured to engage with the body and the skirt such that movement of the actuator relative to the body deforms a resiliently flexible portion of the skirt away from the bore.
    Type: Application
    Filed: November 27, 2017
    Publication date: September 12, 2019
    Inventors: Kevin P. Hadfield, Peter Line