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  • July 2006 Issue

    • Patent Office narrows Surround patent

    A manufacturer of calcium carbonate challenged the patent, pointing out that particle films have been used on plants for years.

    Apples—leaves and fruit—covered with Surround. Photo by Dick Lehnert Changes to Engelhard Corporation’s patent for Surround (a particle film made from kaolin clay) may open the door for other companies to produce and sell particle films for reducing drought stress in crops, a patent attorney says. Engelhard filed a patent application in 1997 for “a method for enhancing the photosynthesis of horticultural crops, which involves treating the surface…with an effective amount of one or more highly reflective particular materials.” The patent, assigned to Engelhard in 2000, lists U.S. Department of Agriculture scientists Drs. Mike Glenn and Gary Puterka and Dennis Sekutowski […]

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    Picture of Geraldine Warner
    Geraldine Warner
    Geraldine Warner was the editor of Good Fruit Grower from 1992-2015. During her tenure, she planned and prepared editorial content, wrote for the magazine, and managed the editorial team. Read her stories: Story Index
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