Patents Represented by Attorney David A. Spevack
  • Patent number: 5225374
    Abstract: This invention relates to a semiconductor substrate having a porous surface nd to the amperometric receptor-based sensors formed with the substrate. More specifically, this invention pertains to the substrate in the form of a bipolar junction transistor having a porous hydrophilic surface directly on its base wherein the surface forms a support for an amperometric sensor. The invention also pertains to the methods of making and using the substrate and sensor.
    Type: Grant
    Filed: January 14, 1992
    Date of Patent: July 6, 1993
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Thomas L. Fare, Frances S. Ligler