Patents by Inventor Jean Schwartz-Feldman

Jean Schwartz-Feldman 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).

  • Patent number: 5501371
    Abstract: This invention relates to a mixing syringe capable of storage of a plurality of compounds that provides for selectively mixing the components, the mixing portion having a first position for separating the components within the storage area, a second position for substantially mixing the components held in the storage area, and a third position providing for complete extrusion of the mixed copmpounds through an applicator tip onto the working surface.
    Type: Grant
    Filed: July 7, 1994
    Date of Patent: March 26, 1996
    Inventor: Jean Schwartz-Feldman