TREA

Joan M. Duckenfield

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  • North Brunswick, NJ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Visually clear gel dentifrice
    • Patent number 5,354,550
    • Issue date Oct 11, 1994
    • Colgate Palmolive Company
    • Michael A. Collins
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Antibacterial antiplaque mouthwash composition
    • Patent number 5,256,401
    • Issue date Oct 26, 1993
    • Colgate-Palmolive Company
    • Joan Duckenfield
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Visually clear gel dentifrice
    • Patent number 5,252,313
    • Issue date Oct 12, 1993
    • Colgate-Palmolive Company
    • Michael A. Collins
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE