Patents by Inventor Donald T. Pero

Donald T. Pero 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).

  • Heat cured rubbers
    Patent number: 5623028
    Abstract: Control of the surface silanol density in silica fillers used in formulating heat curable rubbers enables control of the percent sealing force retention of the composite. Functionalizing the chemical agents used to effect such control adds additional means of controlling the physical properties of the resulting rubbers, especially silicone rubbers.
    Type: Grant
    Filed: December 1, 1995
    Date of Patent: April 22, 1997
    Assignee: General Electric Company
    Inventors: John J. Fitzgerald, John A. Osaheni, Stanlee T. Buddle, Donald T. Pero