Patents by Inventor Lisa Durst

Lisa Durst 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 restorative shade guide and method of selecting a dental restorative shade
    Patent number: 6315554
    Abstract: A shade guide (10) has a base (11) and a plurality of indicia tabs (15) carried by stems (14). Base (11) also includes a shade calculation table (20) containing at least the necessary recipe components of a foundation, body and enamel layers (22, 23 and 24) to achieve the shade of a given tab (15).
    Type: Grant
    Filed: November 14, 2000
    Date of Patent: November 13, 2001
    Assignee: Dentsply Research & Development Corp.
    Inventors: Andrew J. Coste, Junjie Sang, Xiuling Wang, Lisa Durst