Patents by Inventor Cathy Vanderdonckt

Cathy Vanderdonckt 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).

  • Thin polyester film containing cubic calcium carbonate particles suitable for capacitor, digital stencil and thermal transfer media
    Patent number: 5595819
    Abstract: Polyester film is disclosed having a thickness not greater than six microns with cubic calcium carbonate incorporated therein resulting in a Kt.sup.-0.5 of at least 21, where K is a stack stiffness constant and t is film thickness in microns. The film exhibits excellent slittability and winding performance, providing film rolls of uniform hardness with sufficient compressive strength to avoid film buckling. The film can be employed in capacitors, digital stencils and thermal transfer media.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: January 21, 1997
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Virgil L. Anderson, Gusty Feyder, Cathy Vanderdonckt, Albert W. Forrest, Jr., Patrick H. Young