Patents by Inventor Donald C. Kroeger

Donald C. Kroeger 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: 4919918
    Abstract: A non-alcoholic effervescent compound for cleaning and disinfecting the mouth, teeth, gums and breath without necessity of alcohol as a solvent. Surface acting agents, or surfactants, are used to reduce surface tension of the compound in solution, facilitating dissolution of all additives including non-soluble oil-containing components. Surface acting agents also produce a foaming effect which loosens bacteria and food off and out from between teeth. The compound eliminates use of alcohol as a solvent, has increased cleaning action from both foaming and effervescence and produces a good-tasting, desirable mouthwash with appropriate flavor concentrations.
    Type: Grant
    Filed: March 14, 1988
    Date of Patent: April 24, 1990
    Assignee: Spectrum Consumer Products Co., Inc.
    Inventors: B. Harrison Cole, Donald C. Kroeger, Mark E. Wilson