Patents Represented by Attorney Arnold & Knoblock, L.L.P.

Find this attorney in the Justia Lawyer Directory

  • Impact excavation system and method with injection system
    Patent number: 7793741
    Abstract: A system and method according to which at least one vessel injects a suspension of liquid and a plurality of impactors into a formation to remove at least a portion of the formation.
    Type: Grant
    Filed: August 16, 2005
    Date of Patent: September 14, 2010
    Assignee: PDTI Holdings, LLC
    Inventors: Nathan J. Harder, Harry B. Curlett, Paul O. Padgett, Butch Hazel