Patents Represented by Law Firm Banner & Allegtrtti, Ltd.
  • Device for photoresponsive detection and discrimination
    Patent number: 5500188
    Abstract: Photoresponsive devices including a photoresponsive electrode are provided, and methods for their use to measure changes in environment at a site at or about the surface of the photoresponsive device. By employing a source of light for irradiating a site on the surface and means for biasing the photoresponsive electrode in relation to a counterelectrode, a variation in electrical signal can be related to a change in a medium in photoresponsive modulation relationship to the photoresponsive electrode surface.
    Type: Grant
    Filed: January 24, 1994
    Date of Patent: March 19, 1996
    Assignee: Molecular Devices Corporation
    Inventors: Dean G. Hafeman, John W. Parce, Harden M. McConnell