Patents by Inventor Karen Judith Sandoval Herrera

Karen Judith Sandoval Herrera 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).

  • Low-shedding nonwoven abrasive articles
    Patent number: 11504823
    Abstract: Articles and methods regarding the making and use of low-shedding nonwoven abrasive articles, such as abrasive wheels and hand pads, that have a low shed rate and achieve a high grind ratio. The abrasive articles comprise a blend of a plurality of primary abrasive particles and a plurality of reinforcing abrasive particles that is disposed on a nonwoven web substrate. The primary abrasive particles have an average particle size equal to or larger than the average fiber diameter of the substrate fibers, and the reinforcing abrasive particles have an average particle size smaller than the average fiber diameter.
    Type: Grant
    Filed: March 29, 2019
    Date of Patent: November 22, 2022
    Assignees: SAINT-GOBAIN ABRASIVES, INC., SAINT-GOBAIN ABRASIFS
    Inventors: Hooman Amid, Shyiguei Hsu, Fernando J. Ramirez, Karen Judith Sandoval Herrera, Ying Cai
  • LOW-SHEDDING NONWOVEN ABRASIVE ARTICLES
    Publication number: 20190299364
    Abstract: Articles and methods regarding the making and use of low-shedding nonwoven abrasive articles, such as abrasive wheels and hand pads, that have a low shed rate and achieve a high grind ratio. The abrasive articles comprise a blend of a plurality of primary abrasive particles and a plurality of reinforcing abrasive particles that is disposed on a nonwoven web substrate. The primary abrasive particles have an average particle size equal to or larger than the average fiber diameter of the substrate fibers, and the reinforcing abrasive particles have an average particle size smaller than the average fiber diameter.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Hooman Amid, Shyiguei Hsu, Fernando J. Ramirez, Karen Judith Sandoval Herrera, Ying Cai