Patents by Inventor Leonard Louis Kaplan

Leonard Louis Kaplan 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).

  • Enzyme-containing denture cleanser tablet
    Patent number: 3962107
    Abstract: A water-soluble effervescent, layered denture cleanser tablet containing one or more enzymes in one layer and one or more active oxygen compounds in the other layer and in which the enzyme layer is faster dissolving than the active oxygen layer and is substantially completely dissolved before the dissolution of the active oxygen layer reaches a level which would inactivate the enzyme.
    Type: Grant
    Filed: June 24, 1974
    Date of Patent: June 8, 1976
    Assignee: Johnson & Johnson
    Inventors: Norman Arthur Levin, Leonard Louis Kaplan