Patents by Inventor Barbara Stefani

Barbara Stefani 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).

  • Golf ball composition
    Patent number: 5837775
    Abstract: The golf ball composition is comprised of a core with a compression of less than about 90 and a cover made from more than about 50% of a sodium or zinc ionomer resin having a softening termonomer and a flexural modulus of less than about 10,000 psi and less than about 50% of a lithium ionomer resin. The ball has very good performance and has excellent shear resistance.
    Type: Grant
    Filed: November 7, 1996
    Date of Patent: November 17, 1998
    Assignee: Acushnet Company
    Inventors: Dean A. Snell, Barbara Stefani Levitt
  • Golf ball cover
    Patent number: 5670579
    Abstract: A polymer blend and a golf ball employing a cover formed of that composition are disclosed. The polymer blend is made from about 95 to about 50 parts by weight of one or more sodium ionomer resins, one of which has a lower flexural modulus than the other sodium ionomer. About 20 to about 50 parts by weight of a lithium ionomer resin is included in the blend. The ball that employs the cover has excellent spin characteristics.
    Type: Grant
    Filed: February 20, 1996
    Date of Patent: September 23, 1997
    Assignee: Acushnet Company
    Inventor: Barbara Stefani
  • Golf ball cover
    Patent number: 5492972
    Abstract: A polymer blend and a golf ball employing a cover formed of that composition are disclosed. The polymer blend is made from about 95 to about 50 parts by weight of one or more sodium ionomer resins, one of which has a lower flexural modulus than the other sodium ionomer. About 20 to about 50 parts by weight of a lithium ionomer resin is included in the blend. The ball that employs the cover has excellent spin characteristics.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: February 20, 1996
    Assignee: Acushnet Company
    Inventor: Barbara Stefani