Patents by Inventor Linda S. Shaw

Linda S. Shaw 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).

  • Environmentally safe concrete or mortar etching composition and methods thereof
    Patent number: 11459505
    Abstract: Disclosed herein is an environmentally safe etching composition and method for a concrete or mortar surface. The composition includes, in some embodiments, an aqueous solution of urea, acetic acid, a buffering agent, an anticorrosive agent, and a surfactant with no more than about 30% (w/v) urea and at least about 10% (v/v) acetic acid. The method includes, in some embodiments, obtaining the etching composition; applying the etching composition to the concrete or mortar surface at a prescribed ratio of the etching composition to the concrete or mortar surface; allowing the etching composition to stand on the concrete or mortar surface for a prescribed amount of time; and washing the concrete or mortar surface with water to produce an etched surface of the concrete or mortar.
    Type: Grant
    Filed: January 24, 2020
    Date of Patent: October 4, 2022
    Inventors: Lee Shaw, Linda S. Shaw
  • Environmentally safe concrete or mortar etching composition and methods thereof
    Patent number: 10752837
    Abstract: Disclosed herein is an environmentally safe etching composition and method for a concrete or mortar surface. The composition includes, in some embodiments, an aqueous solution of urea, acetic acid, an anticorrosive agent, and a surfactant with no more than about 30% (w/v) urea and at least about 10% (v/v) acetic acid. The method includes, in some embodiments, obtaining the etching composition; applying the etching composition to the concrete or mortar surface at a prescribed ratio of the etching composition to the concrete or mortar surface; allowing the etching composition to stand on the concrete or mortar surface for a prescribed amount of time; and washing the concrete or mortar surface with water to produce an etched surface of the concrete or mortar.
    Type: Grant
    Filed: October 15, 2018
    Date of Patent: August 25, 2020
    Inventors: Lee Shaw, Linda S. Shaw
  • Method and mold for making a decorative ice bowl
    Patent number: 5419856
    Abstract: An ice mold including an outer bowl and an inner bowl which is sized to be receivable into the outer bowl. Also provided is a bracket member which is releasably engageable to the upper rims of the inner and outer bowls and adapted to maintain the inner bowl in a desired orientation relative to the outer bowl when a quantity of fluid is poured into the outer bowl and the inner bowl is inserted into the outer bowl in a manner forcing the fluid upwardly between the inner and outer bowls.
    Type: Grant
    Filed: July 30, 1993
    Date of Patent: May 30, 1995
    Inventor: Linda S. Shaw