Patents Assigned to ADR Subsea AS
  • Well pump device
    Patent number: 6857472
    Abstract: A well pump device, especially for use in connection with the recovery of hydrocarbons, wherein the pump is carried to a predetermined position within a well pipe. The pump is provided with an external seal which is arranged to prevent fluid from flowing from the pressure side of the pump past the pump to the suction side thereof.
    Type: Grant
    Filed: April 27, 2001
    Date of Patent: February 22, 2005
    Assignee: ADR Subsea AS
    Inventor: Roger Stave