Patents by Inventor Duane L. Charbonneau

Duane L. Charbonneau 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).

  • Oral compositions comprising a novel tripeptide
    Patent number: 5500208
    Abstract: The present invention relates to a tripepride having the amino acid sequence Alanine-lsoleucine-Phenylalanine. This invention also relates to methods and compositions for inhibiting growth of dental plaque on tissues within an oral cavity of a human or other animal comprising topical administration, to tissues of such oral cavity, of a composition comprising a safe and effective amount of the tripepride.
    Type: Grant
    Filed: June 7, 1994
    Date of Patent: March 19, 1996
    Assignee: The Procter & Gamble Company
    Inventor: Duane L. Charbonneau
  • Oral compositions comprising actinomyces viscosus fimbriae
    Patent number: 5500206
    Abstract: The present invention relates to compositions and methods for inhibiting or preventing growth of dental plaque on tissues within the human oral cavity comprising topical administration, to tissues of a human oral cavity, of a composition comprising a safe and effective amount of Actinomyces viscosus fimbriae.
    Type: Grant
    Filed: April 29, 1994
    Date of Patent: March 19, 1996
    Assignee: The Procter & Gamble Company
    Inventor: Duane L. Charbonneau
  • Oral compositions
    Patent number: 4994262
    Abstract: Oral compositions containing a cationic antimicrobial agent and benzoic acid and phthalic acid or salts of these acids, which compositions are effective against plaque and gingivitis, are disclosed. Also disclosed are methods for reducing plaque and gingivitis.
    Type: Grant
    Filed: May 25, 1989
    Date of Patent: February 19, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Duane L. Charbonneau, Mark D. Evans, Lincoln D. Germain, Martin S. Robin
  • Oral treatment method for reducing plaque with reduced staining
    Patent number: 4886658
    Abstract: The present invention relates to methods for treating or preventing dental plaque, caries, or gingival or periodontal diseases of the oral cavity in humans or lower animals, with reduced staining of teeth or dentures. The methods comprise topically applying to the oral surfaces of the teeth or dentures of the humans or lower animals:(a) a safe and effective amount of a monoperoxyphthalate compound, and(b) a safe and effective amount of an anti-plaque bis-biguanide compound.The present invention also relates to compositions for achieving such treatments.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: December 12, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Duane L. Charbonneau, Debra J. Moore, Joel I. Shulman
  • Antimicrobial agents and process for their manufacture
    Patent number: 4820698
    Abstract: Disclosed are tetraalkyl enthenylidenebisphosphonates and a method for their manufacture. These compounds are suitable for use as antimicrobial agents in combating a number of pathogenic microorganisms, such as bacteria, yeasts, viruses, fungi and protozoa, when used together with a pharmaceutically-acceptable carrier. Also disclosed is a method for treating infectious diseases by administering a safe and effective amount of these tetraalkyl ethenylidenebisphosphonates.
    Type: Grant
    Filed: April 23, 1986
    Date of Patent: April 11, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Charles R. Degenhardt, Duane L. Charbonneau