Patents by Inventor Leonid Semin

Leonid Semin 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).

  • Contraction joint with multiple telescoping sections
    Patent number: 10280694
    Abstract: An expandable contraction joint is disclosed. Telescoping sections form a contraction joint with an expandable control line (electric, hydraulic or combination) extends through the contraction joint. An external mandrel provides superior mechanical support. The control line can be coiled within the contraction joint to accommodate the changing length.
    Type: Grant
    Filed: March 19, 2015
    Date of Patent: May 7, 2019
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Mark Grattan, Leonid Semin
  • CONTRACTION JOINT WITH MULTIPLE TELESCOPING SECTIONS
    Publication number: 20170183918
    Abstract: An expandable contraction joint is disclosed. Telescoping sections form a contraction joint with an expandable control line (electric, hydraulic or combination) extends through the contraction joint. An external mandrel provides superior mechanical support. The control line can be coiled within the contraction joint to accommodate the changing length.
    Type: Application
    Filed: March 19, 2015
    Publication date: June 29, 2017
    Applicant: Schlumberger Technology Corporation
    Inventors: Mark Grattan, Leonid Semin