Patents by Inventor Gregory Richard Nazzal

Gregory Richard Nazzal 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).

  • Method of selective plastic expansion of sections of a tubing
    Patent number: 6419025
    Abstract: A method of selective plastic expansion of sections of a tubing to create one or more recesses in the tubing with a larger diameter than that of the original tubing in which the tubing is radially symmetrically or asymmetrically expanded at one or more locations by application of a radial force to the interior of the tubing thereby inducing a plastic radial deformation of the tubing and removing said radial force from the interior of the tubing.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: July 16, 2002
    Assignee: Shell Oil Company
    Inventors: Wilhelmus Christianus Maria Lohbeck, Timothy John Frank, Robert Joe Coon, Gregory Richard Nazzal