Patents by Inventor Dawn E. Barkans

Dawn E. Barkans 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).

  • Gums containing antimicrobial agents
    Patent number: 6248309
    Abstract: Gum compositions containing effective amounts of antimicrobial agents that are released to the oral cavity during chewing. In specific embodiments, the antimicrobial agents are released from the gum at different rates and times.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: June 19, 2001
    Assignee: Optiva Corporation
    Inventors: Lokanathan M. Iyer, Dawn E. Barkans, Brian D. Hench