Patents by Inventor David Hollier

David Hollier 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).

  • Dynamic positioning (DP) drive-off (DO) mitigation with inertial navigation system
    Patent number: 9783199
    Abstract: Systems and methods for determining if a vessel is experiencing a drive-off event, identifying a subsystem causing the drive-off event, and controlling a vessel to correct the drive-off event are disclosed. The determining may include processing, with a processor of the dynamic positioning control system, a modeled vessel motion and a measured vessel motion to determine whether there is a discrepancy between the modeled vessel motion and the measured vessel motion. The dynamic positioning (DP) control system may then take action to control vessel motion based, at least in part, on the processing of the modeled vessel motion and the measured vessel motion.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: October 10, 2017
    Assignee: Transocean Sedco Forex Ventures Limited
    Inventors: Trenton Martin, David Hollier
  • DYNAMIC POSITIONING (DP) DRIVE-OFF (DO) MITIGATION WITH INERTIAL NAVIGATION SYSTEM
    Publication number: 20160264143
    Abstract: Systems and methods for determining if a vessel is experiencing a drive-off event, identifying a subsystem causing the drive-off event, and controlling a vessel to correct the drive-off event are disclosed. The determining may include processing, with a processor of the dynamic positioning control system, a modeled vessel motion and a measured vessel motion to determine whether there is a discrepancy between the modeled vessel motion and the measured vessel motion. The dynamic positioning (DP) control system may then take action to control vessel motion based, at least in part, on the processing of the modeled vessel motion and the measured vessel motion.
    Type: Application
    Filed: March 11, 2016
    Publication date: September 15, 2016
    Inventors: Trenton Martin, David Hollier