Patents by Inventor Thomas Schiff

Thomas Schiff 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).

  • Toothbrush with improved cleaning and abrasion efficiency
    Patent number: 6138314
    Abstract: A toothbrush having an improved cleaning and abrasion efficiency, wherein the bristles are comprised of synthetic thermoplastic polymeric compositions, and contain longitudinal channels extending along the length thereof, having a depth sufficient to entrap a quantity of abrasive particles such that during brushing with a toothpaste, contact between the channel entrapped abrasive particles and the surfaces of the teeth is improved, resulting in a cleaning efficiency coefficient, CEC, above about 1.5 and, an abrasion efficiency coefficient, AEC, above about 1.5, while demonstrating suitable bristle wearability.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: October 31, 2000
    Assignee: WhiteHill Oral Technologies, Inc.
    Inventors: Thomas Schiff, Ira D. Hill
  • Method of cleaning teeth with a toothbrush with improved cleaning and abrasion efficiency
    Patent number: 6086373
    Abstract: A toothbrush having an improved cleaning and abrasion efficiency, wherein the bristles are comprised of synthetic thermoplastic polymeric compositions, and contain longitudinal channels extending along the length thereof, having a depth sufficient to entrap a quantity of abrasive particles such that during brushing with a toothpaste, contact between the channel entrapped abrasive particles and the surfaces of the teeth is improved, resulting in a cleaning efficiency coefficient, CEC, above about 1.5 and, an abrasion efficiency coefficient, AEC, above about 1.5, while demonstrating suitable bristle wearability.
    Type: Grant
    Filed: November 10, 1998
    Date of Patent: July 11, 2000
    Inventors: Thomas Schiff, Ira D. Hill