Patents by Inventor Zhe Y. He

Zhe Y. He 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).

  • Multi power launch system for pressure differential device
    Patent number: 9388675
    Abstract: An injection mandrel may include a valve controlling the flow of the injection fluid. A valve actuator operatively connected to the valve sequentially generates a first predetermined pressure and a larger second predetermined pressure in the valve. The valve actuator generates the second predetermined pressure in the valve in response to a predetermined change in a pressure at an annulus surrounding the mandrel.
    Type: Grant
    Filed: June 18, 2013
    Date of Patent: July 12, 2016
    Assignee: BAKER HUGHES INCORPORATED
    Inventor: Zhe Y. He
  • MULTI POWER LAUNCH SYSTEM FOR PRESSURE DIFFERENTIAL DEVICE
    Publication number: 20140367115
    Abstract: An injection mandrel may include a valve controlling the flow of the injection fluid. A valve actuator operatively connected to the valve sequentially generates a first predetermined pressure and a larger second predetermined pressure in the valve. The valve actuator generates the second predetermined pressure in the valve in response to a predetermined change in a pressure at an annulus surrounding the mandrel.
    Type: Application
    Filed: June 18, 2013
    Publication date: December 18, 2014
    Inventor: Zhe Y. He