Patents by Inventor David R. Lombardy

David R. Lombardy 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).

  • Effervescent chewing gum
    Patent number: 6235318
    Abstract: Disclosed is an oral hygiene preparation which is plaque disrupting in the form of a chewing gum. The chewing gum comprises a core containing a carbonate and/or bicarbonate which is surrounded by a coating that contains an encapsulated edible acid. Upon mastication the chewing gum effervesces, thus promoting the cleansing and breath freshening properties of the preparation.
    Type: Grant
    Filed: January 21, 1999
    Date of Patent: May 22, 2001
    Inventors: Charles M. Lombardy, Jr., David R. Lombardy, Jeffrey Wayne Liebrecht