Patents by Inventor Mazhar Mahmood

Mazhar Mahmood 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).

  • Shale drill pipe
    Patent number: 9222314
    Abstract: A drill pipe for oil and gas drilling comprises two tool joints and a main portion between the tool joints, with two upsets adjacent to the tool joints, and a central section between the upsets. The outer diameter of the central section of the main portion is less than the outer diameter of the main portion upsets, and the outer diameter of the central section of the main portion is between 4? and 4½?.
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: December 29, 2015
    Assignee: Vallourec Drilling Products USA, Inc.
    Inventors: Mazhar Mahmood, Marta Lafuente, Scott Granger
  • SHALE DRILL PIPE
    Publication number: 20140209394
    Abstract: A drill pipe for oil and gas drilling comprises two tool joints and a main portion between the tool joints, with two upsets adjacent to the tool joints, and a central section between the upsets. The outer diameter of the central section of the main portion is less than the outer diameter of the main portion upsets, and the outer diameter of the central section of the main portion is between 4? and 4½?.
    Type: Application
    Filed: January 28, 2013
    Publication date: July 31, 2014
    Applicant: VAM DRILLING USA, INC.
    Inventors: Mazhar Mahmood, Marta Lafuente, Scott Granger
  • Shale drill pipe
    Patent number: D726289
    Type: Grant
    Filed: January 28, 2013
    Date of Patent: April 7, 2015
    Assignee: Vam Drilling USA, Inc.
    Inventors: Mazhar Mahmood, Marta Lafuente, Scott Granger