Patents by Inventor Robin Drew

Robin Drew 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).

  • Composite materials and adhesion promoters for dental applications
    Patent number: 6444724
    Abstract: Composite materials particularly suitable in the dental art as a tooth filling material including a polymer matrix, a metal, metal alloy, metal oxide particulate, or combinations thereof, in the presence or absence of colloidal silica, and a coupling agent to adhere the particulate to the polymer matrix. Adhesion can also be facilitated by cleaning and/or coating the particulates prior to incorporation into the polymer matrix. One or two paste systems of the composition with suitable initiators, accelerators, etc. can be formulated.
    Type: Grant
    Filed: December 20, 1999
    Date of Patent: September 3, 2002
    Assignee: BioMat Sciences, Inc.
    Inventors: Ivan Stangel, Thomas Ellis, Erik Kruus, Edward Sacher, Robin Drew, Jingwei Xu