Patents by Inventor Jerry K. Boyd

Jerry K. Boyd 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 apparatus
    Patent number: 4552213
    Abstract: There are disclosed several alternate embodiments of wellhead apparatus of the type in which hydraulic fluid may be transmitted to and/or from a subsurface safety valve or other hydraulically operable device within the well through an annular space formed between the production tubing.
    Type: Grant
    Filed: March 8, 1984
    Date of Patent: November 12, 1985
    Assignee: FIP, Inc.
    Inventors: Jerry K. Boyd, Yu C. Chang