Patents by Inventor Alvin Stanley Topolski

Alvin Stanley Topolski 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).

  • Oxygen barrier composite film structure
    Patent number: 6004660
    Abstract: A composite film structure containing two inorganic layers each being not greater than 600 angstroms in thickness and having an oxygen transmission rate (OTR) not greater than 0.8 cubic centimeters/square meter-day-atmosphere with one of the layers in contact or in substantial contact with a polymeric barrier layer having an oxygen permeability coefficient (OPV) not greater than 1.5 cubic centimeters-25 microns/square meter-day-atm. The composite film structure has an oxygen transmission rate (OTR) of not greater than 0.012 cubic centimeters/square meter-day-atm and can be used in vacuum panel insulation structures.
    Type: Grant
    Filed: March 12, 1998
    Date of Patent: December 21, 1999
    Assignee: E.I. du Pont de Nemours and Company
    Inventors: Alvin Stanley Topolski, Clifford Cheng-Shiou Chang, George Merton Gordon Cumberbatch, David Henry Britt