Patents by Inventor Janice Butcher

Janice Butcher 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).

  • Diagnostic strip
    Patent number: 4668359
    Abstract: A diagnostic strip which comprises a base having coated thereon a dried layer which has been formed by coating onto the base an aqueous solution which comprises from 0.5 to 2.0% by weight of agarose and from 0.5 to 3.0% by weight of non-cross linked polyacrylamide or polyvinyl alcohol or a mixture of these polymers, the dried layer being 0.1 to 100 .mu.m thick and comprising 10 to 50% by weight solids.
    Type: Grant
    Filed: May 9, 1986
    Date of Patent: May 26, 1987
    Assignee: Ciba-Geigy AG
    Inventors: Stephen R. Postle, Peter J. Elton, David P. Gregory, Janice Butcher