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John C. Preston

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  • Chicago, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Pearlescent shampoo and method for preparation of same
    • Patent number 4,654,207
    • Issue date Mar 31, 1987
    • Helene Curtis Industries, Inc.
    • John C. Preston
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Pearlescent shampoo
    • Patent number 4,438,096
    • Issue date Mar 20, 1984
    • Helene Curtis Industries, Inc.
    • John C. Preston
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE