Patents by Inventor Kenneth B. Butzen

Kenneth B. Butzen 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).

  • Patent number: 4000894
    Abstract: Inflatable play balls having improved handling properties and comprising a flexible bladder, a valve for introducing air into the bladder, and a cover over the bladder, the cover having a pebble grain configuration including raised pebble surfaces separated by depressions between the individual pebble surfaces, the raised pebble surfaces having a either a flat or concave configuration.
    Type: Grant
    Filed: June 23, 1975
    Date of Patent: January 4, 1977
    Assignee: Pepsico, Inc.
    Inventor: Kenneth B. Butzen