Patents by Inventor Harrison J. Li

Harrison J. Li 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).

  • Patent number: 9534466
    Abstract: A cap system for subsea equipment that can be employed on various subsea equipment including but not limited to a vertical monobore tree, a horizontal tree, a wellhead and a tubing head spool. The cap system includes a cap assembly that has the flexibility of installation and retrieval for open water as well as a through a riser with a running tool. The cap assembly also does not require any orientation during installation. The cap system includes a debris cap assembly installable in engagement with the cap assembly. The debris cap assembly interfacing with the cap assembly provides the ability to inject and bleed fluids through a main bore and an annulus bore of the subsea tree independently and without removal of the debris cap assembly and cap assembly.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: January 3, 2017
    Assignee: OneSubsea IP UK Limited
    Inventors: Parth D. Pathak, Harrison J. Li, John T. Bogard
  • Publication number: 20140060849
    Abstract: A cap system for subsea equipment that can be employed on various subsea equipment including but not limited to a vertical monobore tree, a horizontal tree, a wellhead and a tubing head spool. The cap system includes a cap assembly that has the flexibility of installation and retrieval for open water as well as a through a riser with a running tool. The cap assembly also does not require any orientation during installation. The cap system includes a debris cap assembly installable in engagement with the cap assembly. The debris cap assembly interfacing with the cap assembly provides the ability to inject and bleed fluids through a main bore and an annulus bore of the subsea tree independently and without removal of the debris cap assembly and cap assembly.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Applicant: CAMERON INTERNATIONAL CORPORATION
    Inventors: Parth D. Pathak, Harrison J. Li, John T. Bogard