Patents by Inventor Henry E. Cardenas

Henry E. Cardenas 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).

  • METHOD OF TREATING CRACKS IN A TUBE
    Publication number: 20250189066
    Abstract: Apparatus and methods for electroplating interior walls of a pipe. The apparatus includes a power and drag line, a tail connected to a first end of the power and drag line, a head connected to the power and drag line, and a plethora of spacers connected to the power and drag line between the tail and the head. A second end of the power and drag line extends out from a side of the head opposite the plethora of spacers. When the apparatus is pulled through a pipe by the second end of the power and drag line, the apparatus is configured to polarize a treatment fluid within walls of the pipe to draw ions within the treatment fluid into cracks in the walls of the pipe.
    Type: Application
    Filed: December 12, 2024
    Publication date: June 12, 2025
    Inventor: Henry E. Cardenas
  • Electrokinetic strength enhancement of concrete
    Patent number: 9487450
    Abstract: A method and apparatus for strengthening cementitious concrete by placing a nanoparticle carrier liquid in contact with a first surface of a concrete section and inducing a current across the concrete section at sufficient magnitude and for sufficient time that nanoparticles in the nanoparticle carrier liquid migrate through a significant depth of the concrete section.
    Type: Grant
    Filed: January 23, 2013
    Date of Patent: November 8, 2016
    Assignee: LOUISIANA TECH RESEARCH CORPORATION
    Inventor: Henry E. Cardenas
  • Electrokinetic strength enhancement of concrete
    Patent number: 8377278
    Abstract: A method and apparatus for strengthening cementitious concrete by placing a nanoparticle carrier liquid in contact with a first surface of a concrete section and inducing a current across the concrete section at sufficient magnitude and for sufficient time that nanoparticles in the nanoparticle carrier liquid migrate through a significant depth of the concrete section.
    Type: Grant
    Filed: January 27, 2006
    Date of Patent: February 19, 2013
    Assignee: Louisiana Tech University Research Foundation; a division of Louisiana Tech University Foundation, Inc.
    Inventor: Henry E. Cardenas