Patents by Inventor William P. Francik

William P. Francik 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).

  • Tire with tread base rubber blend
    Patent number: 5284195
    Abstract: A tire having a tread of a cap/base construction where the base rubber compound is comprised of trans 1,4-polyisoprene and at least one additional diene rubber.
    Type: Grant
    Filed: March 13, 1992
    Date of Patent: February 8, 1994
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul H. Sandstrom, William P. Francik, David M. Smith
  • Tire with tread base rubber blend
    Patent number: 5174838
    Abstract: A tire having a tread of a cap/base construction where the base rubber is comprised of at least one selected diene rubber and a trans 1,4-polybutadiene rubber.
    Type: Grant
    Filed: March 27, 1991
    Date of Patent: December 29, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Paul H. Sandstrom, William P. Francik, J. Dale Massie, II, David M. Smith
  • Alpha-(2,4-dihydroxy)phenyl N-phenyl nitrone and its use in the modification of diene containing polymers
    Patent number: 5091449
    Abstract: The present invention relates to a mononitrone of the formula: ##STR1## The amount of alpha-(2,4-dihydroxy)phenyl N-phenyl nitrone which is used in the modification of a diene containing polymer may range from about 0.1 to about 30 percent by weight of said polymer. The modified polymers exhibit improved tear properties as measured by Strebler adhesion values.
    Type: Grant
    Filed: August 2, 1990
    Date of Patent: February 25, 1992
    Assignee: The Goodyear Tire & Rubber Company
    Inventors: Jose Cantillo, Robert W. Strozier, William P. Francik