Patents Assigned to Wellhead Control Systems, Inc.
  • Patent number: 4169504
    Abstract: A fluid introduction unit adapted to be mounted in a well production flow assembly, sometimes referred to as a christmas tree, for the introduction of highly corrosive fluids into high pressure wells without damaging the production tubing.
    Type: Grant
    Filed: January 12, 1978
    Date of Patent: October 2, 1979
    Assignee: Wellhead Control Systems, Inc.
    Inventor: Raymond L. Scott