Patents by Inventor Randy E. Keen

Randy E. Keen 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).

  • Patent number: 7220550
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode.
    Type: Grant
    Filed: October 25, 2005
    Date of Patent: May 22, 2007
    Assignee: Keensense, Inc.
    Inventor: Randy E. Keen
  • Patent number: 6979544
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode.
    Type: Grant
    Filed: February 2, 2004
    Date of Patent: December 27, 2005
    Assignee: Keensense, Inc.
    Inventor: Randy E. Keen
  • Publication number: 20040223885
    Abstract: The invention provides an apparatus for maintaining a closed continuous anhydrous system for automated polynucleotide synthesis, having a) a plurality of moisture-resistant reagent containers, b) a dry box capable of forming a seal over a synthesis platform of an automated polynucleotide synthesizer, c) moisture-resistant tubing connecting the reagent containers to the dry box, d) a reagent gas feed connecting the reagent containers to a gas, where the gas pressurizes the reagent containers, and e) a digital gas regulator connected to the reagent gas feed, where the gas regulator maintains constant pressure in the reagent containers.
    Type: Application
    Filed: May 6, 2003
    Publication date: November 11, 2004
    Inventors: Randy E. Keen, Alan Koder, David Evans
  • Publication number: 20040157319
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode.
    Type: Application
    Filed: February 2, 2004
    Publication date: August 12, 2004
    Applicant: KeenSense, Inc.
    Inventor: Randy E. Keen
  • Patent number: 6699667
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode.
    Type: Grant
    Filed: September 20, 2001
    Date of Patent: March 2, 2004
    Assignee: KeenSense, Inc.
    Inventor: Randy E. Keen
  • Publication number: 20020015963
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode.
    Type: Application
    Filed: September 20, 2001
    Publication date: February 7, 2002
    Applicant: KeenSense, Inc.
    Inventor: Randy E. Keen
  • Patent number: 6326215
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode. Also disclosed is method of forming a sensor capable of sensing the presence of an analyte component. This method includes (a) contacting a sensor substrate (e.g.
    Type: Grant
    Filed: July 30, 1999
    Date of Patent: December 4, 2001
    Assignee: KeenSense, Inc.
    Inventor: Randy E. Keen
  • Patent number: 6060327
    Abstract: Disclosed is a sensor for sensing the presence of an analyte component without relying on redox mediators. This sensor includes (a) a plurality of conductive polymer strands each having at least a first end and a second end and each aligned in a substantially common orientation; (b) a plurality of molecular recognition headgroups having an affinity for the analyte component and being attached to the first ends of the conductive polymer strands; and (c) an electrode substrate attached to the conductive polymer strands at the second ends. The electrode substrate is capable of reporting to an electronic circuit reception of mobile charge carriers (electrons or holes) from the conductive polymer strands. The electrode substrate may be a photovoltaic diode.Also disclosed is method of forming a sensor capable of sensing the presence of an analyte component. This method includes (a) contacting a sensor substrate (e.g.
    Type: Grant
    Filed: May 14, 1997
    Date of Patent: May 9, 2000
    Assignee: Keensense, Inc.
    Inventor: Randy E. Keen