Patents by Inventor Brad Castillo

Brad 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).

  • Dental floss
    Patent number: 5875797
    Abstract: Improved dental flosses include two or more components selected to provide desired properties to the floss. The improved flosses may comprise one or a plurality of multicomponent filaments, each filament including an inner core selected to provide strength to the floss, and an outer layer selected to provide a desired surface property. The improved flosses also may comprise one or a plurality of core filaments embedded in a single body sheath. The filament component provides desirable physical properties to the floss, such as tensile strength, while a floss body sheath component provides desirable surface properties.
    Type: Grant
    Filed: November 6, 1996
    Date of Patent: March 2, 1999
    Assignee: Gillette Canada Inc.
    Inventors: Casper W. Chiang, Edward Hosung Park, Brad Castillo, Mingchih Michael Tseng
  • Dental floss with thermoplastic coating
    Patent number: 5755243
    Abstract: Improved dental flosses are provided, including a fiber core, preferably a multifilament fiber, and an elastomeric outer layer.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: May 26, 1998
    Assignee: Gillette Canada, Inc.
    Inventors: Michael Roberts, David Anglin, Brad Castillo, Casper Chiang, Jean Spencer
  • Analyte test meter
    Patent number: D543878
    Type: Grant
    Filed: September 1, 2006
    Date of Patent: June 5, 2007
    Assignee: Lifescan, Inc.
    Inventors: Brad Castillo, Marjan Daghigh