Patents by Inventor Andrew J. Allen

Andrew J. Allen 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).

  • Integral wear pad and method
    Patent number: 8783344
    Abstract: The current invention provides a drill pipe of standard weight with an integral wear pad. The drill pipe with integral wear pad provides increased durability while retaining the strength, flexibility, lightweight, and other performance characteristics of standard weight drill pipe. The current invention also provides methods for making a standard weight drill pipe with integral wear pad.
    Type: Grant
    Filed: March 14, 2011
    Date of Patent: July 22, 2014
    Inventors: Thein Htun Aung, Raul G. Garza, Andrew J. Allen, R. Thomas Moore
  • Ground inserted helical staff support
    Patent number: D363616
    Type: Grant
    Filed: December 13, 1993
    Date of Patent: October 31, 1995
    Inventor: Andrew J. Allen