Patents by Inventor Anthony Neal Watkins
Anthony Neal Watkins 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: 8147920Abstract: A carbon nanotube (CNT) attraction material is deposited on a substrate in the gap region between two electrodes on the substrate. An electric potential is applied to the two electrodes. The CNT attraction material is wetted with a solution defined by a carrier liquid having carbon nanotubes (CNTs) suspended therein. A portion of the CNTs align with the electric field and adhere to the CNT attraction material. The carrier liquid and any CNTs not adhered to the CNT attraction material are then removed.Type: GrantFiled: February 13, 2009Date of Patent: April 3, 2012Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jan M. Smits, Russell A. Wincheski, JoAnne L. Patry, Anthony Neal Watkins, Jeffrey D. Jordan
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Publication number: 20090233001Abstract: A carbon nanotube (CNT) attraction material is deposited on a substrate in the gap region between two electrodes on the substrate. An electric potential is applied to the two electrodes. The CNT attraction material is wetted with a solution defined by a carrier liquid having carbon nanotubes (CNTs) suspended therein. A portion of the CNTs align with the electric field and adhere to the CNT attraction material. The carrier liquid and any CNTs not adhered to the CNT attraction material are then removed.Type: ApplicationFiled: February 13, 2009Publication date: September 17, 2009Applicant: USA as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jan M. Smits, Russell A. Wincheski, JoAnne L. Patry, Anthony Neal Watkins, Jeffrey D. Jordan
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Patent number: 7491428Abstract: A carbon nanotube (CNT) attraction material is deposited on a substrate in the gap region between two electrodes on the substrate. An electric potential is applied to the two electrodes. The CNT attraction material is wetted with a solution defined by a carrier liquid having carbon nanotubes (CNTs) suspended therein. A portion of the CNTs align with the electric field and adhere to The CNT attraction material. The carrier liquid and any CNTs not adhered to the CNT attraction material are then removed.Type: GrantFiled: December 4, 2003Date of Patent: February 17, 2009Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jan M. Smits, Russell A. Wincheski, JoAnne L. Ingram, Anthony Neal Watkins, Jeffrey D. Jordan
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Patent number: 7390768Abstract: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.Type: GrantFiled: January 22, 2002Date of Patent: June 24, 2008Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, David R. Schryer, Patricia P. Davis, Bradley D. Leighty, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby, Suresh T. Gulati, Jerry C. Summers
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Patent number: 7318915Abstract: This invention relates generally to a ruthenium stabilized oxidation-reduction catalyst useful for oxidizing carbon monoxide, and volatile organic compounds, and reducing nitrogen oxide species in oxidizing environments, substantially without the formation of toxic and volatile ruthenium oxide species upon said oxidizing environment being at high temperatures.Type: GrantFiled: January 13, 2003Date of Patent: January 15, 2008Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby
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Patent number: 7194912Abstract: A sensor has a plurality of carbon nanotube (CNT)-based conductors operatively positioned on a substrate. The conductors are arranged side-by-side, such as in a substantially parallel relationship to one another. At least one pair of spaced-apart electrodes is coupled to opposing ends of the conductors. A portion of each of the conductors spanning between each pair of electrodes comprises a plurality of carbon nanotubes arranged end-to-end and substantially aligned along an axis. Because a direct correlation exists between resistance of a carbon nanotube and carbon nanotube strain, changes experienced by the portion of the structure to which the sensor is coupled induce a change in electrical properties of the conductors.Type: GrantFiled: July 13, 2004Date of Patent: March 27, 2007Assignee: United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, Anthony Neal Watkins, Donald M. Oglesby, JoAnne L. Ingram
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Patent number: 7129467Abstract: A light sensor substrate comprises a base made from a semi-conductive material and topped with a layer of an electrically non-conductive material. A first electrode and a plurality of carbon nanotube (CNT)-based conductors are positioned on the layer of electrically non-conductive material with the CNT-based conductors being distributed in a spaced apart fashion about a periphery of the first electrode. Each CNT-based conductor is coupled on one end thereof to the first electrode and extends away from the first electrode to terminate at a second free end. A second or gate electrode is positioned on the non-conductive material layer and is spaced apart from the second free end of each CNT-based conductor. Coupled to the first and second electrode is a device for detecting electron transfer along the CNT-based conductors resulting from light impinging on the CNT-based conductors.Type: GrantFiled: September 10, 2004Date of Patent: October 31, 2006Assignee: The United States of America as represented by the Administrator of the National Aeronautics and Space AdministrationInventors: Russell A. Wincheski, Jan M. Smits, Jeffrey D. Jordan, Anthony Neal Watkins, JoAnne L. Ingram
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Publication number: 20040228961Abstract: A method is provided for the controlled deposition and alignment of carbon nanotubes. A carbon nanotube (CNT) attraction material is deposited on a substrate in the gap region between two electrodes on the substrate. An electric potential is applied to the two electrodes. The CNT attraction material is wetted with a solution defined by a carrier liquid having carbon nanotubes (CNTs) suspended therein. A portion of the CNTs align with the electric field and adhere to the CNT attraction material. The carrier liquid and any CNTs not adhered to the CNT attraction material are then removed.Type: ApplicationFiled: December 4, 2003Publication date: November 18, 2004Applicant: United States of America as represented by the Admin. of the Nat'l Aeronautics & Space Admin.Inventors: Jan M. Smits, Russell A. Wincheski, JoAnne L. Ingram, Anthony Neal Watkins, Jeffrey D. Jordan
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Publication number: 20030144143Abstract: This invention relates generally to a stabilization mechanism for use in oxidation/reduction catalyst systems. It particularly relates to a ruthenium stabilization mechanism that enables the use of inexpensive metallic species within catalyst systems targeted for the elimination of toxic emissions such as carbon monoxide, hydrocarbons, and other volatile organics, and specifically nitrogen oxide species. Said stabilization mechanism includes the use of zirconium-oxides in an oxidation-reduction catalyst.Type: ApplicationFiled: January 13, 2003Publication date: July 31, 2003Applicant: Administrator of the National Aeronautics and Space AdministrationInventors: Jeffrey D. Jordan, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby
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Publication number: 20030139290Abstract: The invention described herein involves a novel approach to the production of oxidation/reduction catalytic systems. The present invention serves to stabilize the tin oxide reducible metal-oxide coating by co-incorporating at least another metal-oxide species, such as zirconium. In one embodiment, a third metal-oxide species is incorporated, selected from the group consisting of cerium, lanthanum, hafnium, and ruthenium. The incorporation of the additional metal oxide components serves to stabilize the active tin-oxide layer in the catalytic process during high-temperature operation in a reducing environment (e.g., automobile exhaust). Moreover, the additional metal oxides are active components due to their oxygen-retention capabilities. Together, these features provide a mechanism to extend the range of operation of the tin-oxide-based catalyst system for automotive applications, while maintaining the existing advantages.Type: ApplicationFiled: January 22, 2002Publication date: July 24, 2003Inventors: Jeffrey D. Jordan, David R. Schryer, Patricia P. Davis, Bradley D. Leighty, Anthony Neal Watkins, Jacqueline L. Schryer, Donald M. Oglesby