Patents by Inventor David Lee Hall

David Lee Hall 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).

  • Reclosable package or bag with audible reclosure
    Patent number: 9193505
    Abstract: The present disclosure relates a reclosure or zipper for a reclosable package or container, such as a plastic bag, wherein opening or closing the zipper causes an audible sound and a tactile feel. The reclosure or zipper is manufactured by an apparatus which includes a cutting wheel which is opposed to a pressure wheel. The cutting wheel includes cutting teeth spaced about its periphery. Interlocked zipper material is engaged between the cutting wheel and the pressure wheel to form indentations in the interlocked zipper, thereby resulting in audible and tactile feedback when the zipper is operated.
    Type: Grant
    Filed: May 13, 2013
    Date of Patent: November 24, 2015
    Assignee: MINIGRIP, LLC
    Inventors: Roy Kosub, Sr., David Lee Hall, Jacob Arriaga, Richard Lee Bell, James E. Cheatham, Victor H. Ramirez, Armando Barajas Guerrero
  • Thixotropic liquid automatic dishwashing composition with enzyme
    Patent number: 5691292
    Abstract: A viscoelastic, thixotropic, liquid automatic dishwashing detergent composition which is substantially free of chlorine bleach and silicate and contains enzyme(s), an enzyme stabilizing system, and a detergent surfactant or detergent builder is provided. It has a product pH between about 7 and about 11.
    Type: Grant
    Filed: August 22, 1995
    Date of Patent: November 25, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Janet Layne Marshall, David Lee Hall, Hal Ambuter, Edward Paul Fitch