Patents by Inventor Fernando Garzon
Fernando Garzon 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: 11283020Abstract: An resistive switch having a first platinum layer, an electrolyte layer that is formed by extrusion based additive manufacturing, a silver layer, and a second platinum layer, and methods of manufacturing and using the resistive switch.Type: GrantFiled: February 14, 2020Date of Patent: March 22, 2022Assignee: UNM RAINFOREST INNOVATIONSInventors: Lok-kun Tsui, John Bryan Plumley, Fernando Garzon, Benjamin J. Brownlee, Thomas L. Peng
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Publication number: 20210395910Abstract: An ion exchange membrane separated two electrode flow analyzer for continuous aqueous electrochemical heavy metal detection is disclosed. The electrochemical cell includes a gas diffusion counter/reference electrode, a flooded flow through working electrode, and an ion exchange membrane that separates the gas diffusion counter/reference electrode and the flooded flow through working electrode. A method of continuous fluid analysis using a multi-electrode flow analyzer is also disclosed, including passing an aqueous sample through a first inlet flow area and into a working electrode of a multi-electrode flow analyzer, passing a gas mixture through a second inlet flow area and into a counter/reference electrode of the multi-electrode flow analyzer, depositing an analyte onto a surface of the working electrode, stripping the analyte from the surface of the working electrode by sweeping a range of a potential applied to the surface of the working electrode.Type: ApplicationFiled: June 23, 2021Publication date: December 23, 2021Inventors: Tybur Quinton Casuse, Fernando Garzon, Jose Manuel Cerrato Corrales
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Publication number: 20210094839Abstract: An electrolytic cell and method for synthesizing ammonia by utilizing a lithium selective membrane in the electrolytic cell and providing at least one lithium halogen salt as an electrolyte in the electrochemical process of producing ammonia. The reaction utilizes a hydrogen halide or hydrogen sulfide as a hydrogen oxidant in the process, and allows the regeneration of lithium halide salts that can be recycled back into the cell reaction.Type: ApplicationFiled: January 22, 2019Publication date: April 1, 2021Inventors: Fernando GARZON, Shekar BALAGOPAL
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Publication number: 20080006532Abstract: The present invention relates to an electrochemical gas sensor for measuring gas concentrations of chemical species. More particularly, the invention relates to an electrochemical sensor that measures ammonia and total nitrogen oxides.Type: ApplicationFiled: August 1, 2007Publication date: January 10, 2008Inventors: Rangachary Mukundan, Eric Brosha, Fernando Garzon
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Publication number: 20070193883Abstract: A mixed potential sensor for oxidizable or reducible gases and a method of making. A substrate is provided and two electrodes are formed on a first surface of the substrate, each electrode being formed of a different catalytic material selected to produce a differential voltage between the electrodes from electrochemical reactions of the gases catalyzed by the electrode materials. An electrolytic layer of an electrolyte is formed over the electrodes to cover a first portion of the electrodes from direct exposure to the gases with a second portion of the electrodes uncovered for direct exposure to the gases.Type: ApplicationFiled: January 20, 2004Publication date: August 23, 2007Inventors: Fernando Garzon, Eric Brosha, Rangachary Mukundan
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Patent number: 7214333Abstract: A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and fixed within the electrolyte as the electrolyte is compressed and sintered. The electrochemical sensor is formed by placing a wire reference electrode and a wire sensing electrode in a die, where each electrode has a first compressed planar section and a second section depending from the first section with the second section of each electrode extending axially within the die. The die is filled with an oxide-electrolyte powder and the powder is pressed within the die with the wire electrodes. The wire-electrodes and the pressed oxide-electrolyte powder are sintered to form a ceramic electrolyte base with a reference wire electrode and a sensing wire electrode depending therefrom.Type: GrantFiled: July 18, 2003Date of Patent: May 8, 2007Assignee: Los Alamos National Security, LLCInventors: Rangachary Mukundan, Eric L. Brosha, Fernando Garzon
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Publication number: 20060231987Abstract: A method of making electrochemical sensors in which an electrolyte material is cast into a tape. Prefabricated electrodes are then partially embedded between two wet layers of the electrolyte tape to form a green sensor, and the green sensor is then heated to sinter the electrolyte tape around the electrodes. The resulting sensors can be used in applications such as, but not limited to, combustion control, environmental monitoring, and explosive detection. A electrochemical sensor formed by the tape-casting method is also disclosed.Type: ApplicationFiled: April 19, 2005Publication date: October 19, 2006Inventors: Rangachary Mukundan, Eric Brosha, Fernando Garzon
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Publication number: 20060231420Abstract: A solid state electrochemical gas sensor for detecting trace amounts of explosive materials and a method of detecting such explosives. The sensor has at least two electrodes. The at least two electrodes include a first catalytic electrode and a second catalytic electrode that are dissimilar and an electrolyte disposed between the first catalytic electrode and the second catalytic electrode. The sensor detects at least one gaseous specie emitted by the explosive material. At least one of a potential difference and a current flow is generated by at least one of catalytic and electrochemical reactions of the gaseous species emitted by the explosive material on one of the first catalytic electrode, second catalytic electrode, and the electrolyte. An explosive detection system that incorporates such sensors and methods is also described.Type: ApplicationFiled: April 19, 2005Publication date: October 19, 2006Inventors: Fernando Garzon, Eric Brosha, Rangachary Mukundan
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Publication number: 20040112744Abstract: A hydrocarbon sensor is formed with an electrolyte body having a first electrolyte surface with a reference electrode depending therefrom and a metal oxide electrode body contained within the electrolyte body and having a first electrode surface coplanar with the first electrolyte surface. The sensor was formed by forming a sintered metal-oxide electrode body and placing the metal-oxide electrode body within an electrolyte powder. The electrolyte powder with the metal-oxide electrode body was pressed to form a pressed electrolyte body containing the metal-oxide electrode body. The electrolyte was removed from an electrolyte surface above the metal-oxide electrode body to expose a metal-oxide electrode surface that is coplanar with the electrolyte surface. The electrolyte body and the metal-oxide electrode body were then sintered to form the hydrocarbon sensor.Type: ApplicationFiled: November 25, 2003Publication date: June 17, 2004Inventors: Rangachary Mukundan, Eric L. Brosha, Fernando Garzon
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Publication number: 20040016104Abstract: A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and fixed within the electrolyte as the electrolyte is compressed and sintered. The electrochemical sensor is formed by placing a wire reference electrode and a wire sensing electrode in a die, where each electrode has a first compressed planar section and a second section depending from the first section with the second section of each electrode extending axially within the die. The die is filled with an oxide-electrolyte powder and the powder is pressed within the die with the wire electrodes. The wire-electrodes and the pressed oxide-electrolyte powder are sintered to form a ceramic electrolyte base with a reference wire electrode and a sensing wire electrode depending therefrom.Type: ApplicationFiled: July 18, 2003Publication date: January 29, 2004Inventors: Rangachary Mukundan, Eric L. Brosha, Fernando Garzon
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Patent number: 6656336Abstract: A hydrocarbon sensor is formed with an electrolyte body having a first electrolyte surface with a reference electrode depending therefrom and a metal oxide electrode body contained within the electrolyte body and having a first electrode surface coplanar with the first electrolyte surface. The sensor was formed by forming a sintered metal-oxide electrode body and placing the metal-oxide electrode body within an electrolyte powder. The electrolyte powder with the metal-oxide electrode body was pressed to form a pressed electrolyte body containing the metal-oxide electrode body. The electrolyte was removed from an electrolyte surface above the metal-oxide electrode body to expose a metal-oxide electrode surface that is coplanar with the electrolyte surface. The electrolyte body and the metal-oxide electrode body were then sintered to form the hydrocarbon sensor.Type: GrantFiled: May 30, 2002Date of Patent: December 2, 2003Assignee: The Regents of the University of CaliforniaInventors: Rangachary Mukundan, Eric L. Brosha, Fernando Garzon
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Patent number: 6605202Abstract: A mixed potential electrochemical sensor for the detection of gases has a ceria-based electrolyte with a surface for exposing to the gases to be detected, and with a reference wire electrode and a sensing wire electrode extending through the surface and fixed within the electrolyte as the electrolyte is compressed and sintered. The electrochemical sensor is formed by placing a wire reference electrode and a wire sensing electrode in a die, where each electrode has a first compressed planar section and a second section depending from the first section with the second section of each electrode extending axially within the die. The die is filled with an oxide-electrolyte powder and the powder is pressed within the die with the wire electrodes. The wire-electrodes and the pressed oxide-electrolyte powder are sintered to form a ceramic electrolyte base with a reference wire electrode and a sensing wire electrode depending therefrom.Type: GrantFiled: June 18, 2002Date of Patent: August 12, 2003Assignee: The Regents of the University of CaliforniaInventors: Rangachary Mukundan, Eric L. Brosha, Fernando Garzon
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Publication number: 20020185376Abstract: A hydrocarbon sensor is formed with an electrolyte body having a first electrolyte surface with a reference electrode depending therefrom and a metal oxide electrode body contained within the electrolyte body and having a first electrode surface coplanar with the first electrolyte surface. The sensor was formed by forming a sintered metal-oxide electrode body and placing the metal-oxide electrode body within an electrolyte powder. The electrolyte powder with the metal-oxide electrode body was pressed to form a pressed electrolyte body containing the metal-oxide electrode body. The electrolyte was removed from an electrolyte surface above the metal-oxide electrode body to expose a metal-oxide electrode surface that is coplanar with the electrolyte surface. The electrolyte body and the metal-oxide electrode body were then sintered to form the hydrocarbon sensor.Type: ApplicationFiled: May 30, 2002Publication date: December 12, 2002Inventors: Rangachary Mukundan, Eric L. Brosha, Fernando Garzon