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).
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Patent number: 7220550Abstract: 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: GrantFiled: October 25, 2005Date of Patent: May 22, 2007Assignee: Keensense, Inc.Inventor: Randy E. Keen
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Patent number: 6979544Abstract: 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: GrantFiled: February 2, 2004Date of Patent: December 27, 2005Assignee: Keensense, Inc.Inventor: Randy E. Keen
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Publication number: 20040223885Abstract: 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: ApplicationFiled: May 6, 2003Publication date: November 11, 2004Inventors: Randy E. Keen, Alan Koder, David Evans
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Publication number: 20040157319Abstract: 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: ApplicationFiled: February 2, 2004Publication date: August 12, 2004Applicant: KeenSense, Inc.Inventor: Randy E. Keen
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Patent number: 6699667Abstract: 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: GrantFiled: September 20, 2001Date of Patent: March 2, 2004Assignee: KeenSense, Inc.Inventor: Randy E. Keen
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Publication number: 20020015963Abstract: 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: ApplicationFiled: September 20, 2001Publication date: February 7, 2002Applicant: KeenSense, Inc.Inventor: Randy E. Keen
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Patent number: 6326215Abstract: 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: GrantFiled: July 30, 1999Date of Patent: December 4, 2001Assignee: KeenSense, Inc.Inventor: Randy E. Keen
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Patent number: 6060327Abstract: 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: GrantFiled: May 14, 1997Date of Patent: May 9, 2000Assignee: Keensense, Inc.Inventor: Randy E. Keen