Patents by Inventor Frazer A. Armstrong

Frazer A. Armstrong 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).

  • Graphite electrode with modified surface
    Patent number: 4836904
    Abstract: An electrode has a graphite surface at least part of which is an edge-plane graphite surface to which Cr(III) complexes are attached by surface C--O groups. The graphite can be polished pyrolytic graphite. The complex coverage can be 5-20%. The complex may comprise proteins, enzyme substrates, specific binding agents, intermediate metabolites or the like, e.g. the protein plastocyanin, so that direct unmediated electrochemistry is possible at the electrode.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: June 6, 1989
    Assignee: Medisense, Inc.
    Inventors: Frazer A. Armstrong, Brian N. Oliver, Hugh A. O. Hill