Patents by Inventor Steve E. Zibell

Steve E. Zibell 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).

  • Gradual release structures for chewing gum
    Patent number: 5108762
    Abstract: Gradual release structures for the release of glycyrrhizin in chewing gum and a process for making such structures are provided. The gradual release structures are formed by meltspinning glycyrrhizin and a wall material.
    Type: Grant
    Filed: October 30, 1990
    Date of Patent: April 28, 1992
    Assignee: Wm. Wrigley Jr. Company
    Inventors: Kevin B. Broderick, Joo H. Song, Adebisi A. Campbell, Steve E. Zibell, Mansukh M. Patel