Patents Assigned to Alpha Dog Oilfield Tools
  • Elevator link extension systems
    Patent number: 9556690
    Abstract: In the field of well drilling, a bail link extender device connected to a drilling rig enabling the working length of an elevator links to be extended.
    Type: Grant
    Filed: October 21, 2015
    Date of Patent: January 31, 2017
    Assignee: Alpha Dog Oilfield Tools
    Inventor: Manuel Marquez
  • Bail extender
    Patent number: D768471
    Type: Grant
    Filed: May 13, 2015
    Date of Patent: October 11, 2016
    Assignee: Alpha Dog Oilfield Tools
    Inventor: Manuel Marquez