Patents Represented by Attorney Banner & Witcoffff, Ltd.

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  • Nanostructured bioactive materials prepared by spray drying techniques
    Patent number: 7390335
    Abstract: Nano-particles of calcium and phosphorous compounds are made in a highly pure generally amorphous state by spray drying a weak acid solution of said compound and evaporating the liquid from the atomized spray in a heated column followed by collection of the precipitated particles. Hydroxy apetite (HA) particles formed by such apparatus and methods are examples of particle manufacture useful in bone and dental therapies.
    Type: Grant
    Filed: April 6, 2005
    Date of Patent: June 24, 2008
    Assignee: American Dental Association Foundation
    Inventor: Laurence C. Chow