Patents by Inventor Maria C. Castillo

Maria C. Castillo 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).

  • Patent number: 11826883
    Abstract: Various embodiments disclosed relate to an abrasive article. The abrasive article includes a first major surface and an opposed second major surface. Each major surface contacts a peripheral side surface. A central axis extends through the first and second major surfaces. A first layer of abrasive particles is dispersed within the abrasive article according to a first predetermined pattern. Further a second layer of abrasive particles spaced apart from the first layer of abrasive particles and is dispersed within the abrasive article along a according to a second predetermined pattern. A binder material retains the first and second layers of abrasive particles in the abrasive article. A portion of the binder material is located between the first and second layers of abrasive particles. That portion of the binder material is substantially continuous.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: November 28, 2023
    Assignee: Innovative Properties Company
    Inventors: Maria C. Castillo, Aaron K. Nienaber, Joseph B. Eckel, Maiken Givot
  • Publication number: 20200086458
    Abstract: Various embodiments disclosed relate to an abrasive article. The abrasive article includes a first major surface and an opposed second major surface. Each major surface contacts a peripheral side surface. A central axis extends through the first and second major surfaces. A first layer of abrasive particles is dispersed within the abrasive article according to a first predetermined pattern. Further a second layer of abrasive particles spaced apart from the first layer of abrasive particles and is dispersed within the abrasive article along a according to a second predetermined pattern. A binder material retains the first and second layers of abrasive particles in the abrasive article. A portion of the binder material is located between the first and second layers of abrasive particles. That portion of the binder material is substantially continuous.
    Type: Application
    Filed: December 15, 2017
    Publication date: March 19, 2020
    Inventors: Maria C. Castillo, Aaron K. Nienaber, Joseph B. Eckel, Maiken Givot