Patents by Inventor Steven Brett Walker
Steven Brett Walker 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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Publication number: 20230242783Abstract: Disclosed herein are ink compositions for making a conductive copper structure. The ink composition comprise a copper metal precursor compound, a chelating agent, and a reducing agent. In some embodiments, the redox potential of the reducing agent is adjusted for controlled reduction of copper ion in the copper metal precursor to metal copper metal. Also disclosed herein are methods for making the ink compositions and methods for using the same.Type: ApplicationFiled: August 29, 2022Publication date: August 3, 2023Applicant: ELECTRONINKS INCORPORATEDInventors: Steven Brett WALKER, Leonardo ZORNBERG
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Publication number: 20230228544Abstract: A firearm projectile has a rear section and a forward section spaced from the rear section. A collapsible spacer is positioned between the forward section and the rear section.Type: ApplicationFiled: January 17, 2023Publication date: July 20, 2023Inventors: Steven Brett Walker, Matthew Wilkes
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Patent number: 11649366Abstract: Disclosed herein are ink compositions for making a conductive palladium structure. For example, the ink composition can comprise a palladium salt and a complex of a complexing agent and a short chain carboxylic acid or salt thereof. In some embodiments, a second or third metal salt is included in the compositions. Also disclosed herein are methods for making and using such conductive ink compositions.Type: GrantFiled: August 3, 2018Date of Patent: May 16, 2023Assignee: ELECTRONINKS INCORPORATEDInventor: Steven Brett Walker
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Publication number: 20220332967Abstract: A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100° C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for making a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to forms the conductive structure is further provided.Type: ApplicationFiled: November 22, 2021Publication date: October 20, 2022Applicant: ELECTRONINKS INCORPORATEDInventor: Steven Brett WALKER
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Patent number: 11427727Abstract: Disclosed herein are ink compositions for making a conductive copper structure. The ink composition comprise a copper metal precursor compound, a chelating agent, and a reducing agent. In some embodiments, the redox potential of the reducing agent is adjusted for controlled reduction of copper ion in the copper metal precursor to metal copper metal. Also disclosed herein are methods for making the ink compositions and methods for using the same.Type: GrantFiled: December 8, 2017Date of Patent: August 30, 2022Assignee: ELECTRONINKS INCORPORATEDInventors: Steven Brett Walker, Leonardo Zornberg
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Publication number: 20210395551Abstract: Disclosed herein are ink compositions for making a conductive palladium structure. For example, the ink composition can comprise a palladium salt and a complex of a complexing agent and a short chain carboxylic acid or salt thereof. In some embodiments, a second or third metal salt is included in the compositions. Also disclosed herein are methods for making and using such conductive ink compositions.Type: ApplicationFiled: August 3, 2018Publication date: December 23, 2021Inventor: Steven Brett WALKER
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Patent number: 11180673Abstract: A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100° C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for milking a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to form the conductive structures farther provided.Type: GrantFiled: May 27, 2019Date of Patent: November 23, 2021Assignee: ELECTRONINKS INCORPORATEDInventor: Steven Brett Walker
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Publication number: 20210307163Abstract: This disclosure provides electrically conductive materials, including electrically conductive textile materials, such as woven or knitted fabric textiles, individual fibers, and woven fibers and yarns. The conductive materials comprise a substrate material, such as a textile or other suitable material, and a metal embedded in the substrate material, in particular where the metal is embedded into and below the surface of the material. Also provided are methods of making the electrically conductive materials.Type: ApplicationFiled: August 3, 2019Publication date: September 30, 2021Inventors: Melburne C. LEMIEUX, Steven Brett WALKER, Gaurav TULSYAN
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Patent number: 10703924Abstract: A conductive ink for a rollerball pen comprises an aqueous solvent and conductive particles comprising one or more metals dispersed therein at a concentration of at least about 30 wt. %. The conductive particles include conductive flakes and conductive nanoparticles. A dispersant coats the conductive particles at a loading level of at least about 0.1 mg/m2 to about 0.8 mg/m2. A conductive trace deposited on a substrate from a rollerball pen comprises a percolative network of conductive particles comprising one or more metals. The conductive particles include conductive flakes and conductive nanoparticles. The conductive trace has a conductivity of at least about 1% of a bulk metal conductivity and a reflectance of greater than 40%.Type: GrantFiled: May 21, 2015Date of Patent: July 7, 2020Assignee: ELECTRONINKS WRITEABLES, INC.Inventors: Steven Brett Walker, Analisa Russo
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Publication number: 20200157369Abstract: A particle-free gold-complex based ink is described wherein a gold carboxylate is complexed with an amine. Upon heating the solution, the gold cation catalyzes the oxidative amidation of the amine with the carboxylate to form a short chain or polymeric amide while simultaneously reducing the gold cation to metallic gold. This method is extremely versatile and allows for both the preparation of pure metallic gold films as well as polymer gold composites with unique properties.Type: ApplicationFiled: August 3, 2018Publication date: May 21, 2020Inventor: Steven Brett WALKER
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Publication number: 20190315990Abstract: Disclosed herein are ink compositions for making a conductive copper structure. The ink composition comprise a copper metal precursor compound, a chelating agent, and a reducing agent. In some embodiments, the redox potential of the reducing agent is adjusted for controlled reduction of copper ion in the copper metal precursor to metal copper metal. Also disclosed herein are methods for making the ink compositions and methods for using the same.Type: ApplicationFiled: December 8, 2017Publication date: October 17, 2019Inventors: Steven Brett WALKER, Leonardo ZORNBERG
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Publication number: 20190315989Abstract: A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100° C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for milking a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to form the conductive structures farther provided.Type: ApplicationFiled: May 27, 2019Publication date: October 17, 2019Applicant: ELECTRONINKS INCORPORATEDInventor: Steven Brett WALKER
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Patent number: 10301497Abstract: A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100° C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for making a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to form the conductive structure is further provided.Type: GrantFiled: April 15, 2015Date of Patent: May 28, 2019Assignee: ELECTRONINKS INCORPORATEDInventor: Steven Brett Walker
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Patent number: 9982154Abstract: The present invention provides an ink composition. The composition comprises a metal ion and a ligand. The ink composition is in a form of solid at a temperature of less than about 30° C. and in a form of liquid at temperature of above about 40 to about 80° C.Type: GrantFiled: April 15, 2015Date of Patent: May 29, 2018Assignee: ELECTRONINKS INCORPORATEDInventor: Steven Brett Walker
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Publication number: 20170210930Abstract: A conductive structure is provided. The conductive ink composition includes a silver complex formed by mixing a silver carboxylate, at least one dissolving agent that dissolves the silver carboxylate, and a catalyst. The catalyst includes an amine that decarboxylates the silver carboxylate to make the conductive ink composition. The catalyst decarboxylates the silver carboxylate at a temperature of 100° C. or less. An ink composition comprising a metallic salt with a sterically bulky counter ion and a ligand is also provided. An ink composition for making a conductive structure, comprising a reducible metal complex formed by mixing: a reducing agent, wherein the reducing agent is dissolved in a dissolving agent; and at least one metal salt or metal complex comprising a Group 4, 5, 6, 7, 8, 9, 10, 11, or 12 metal, wherein the reducing agent reduces the metal to form the conductive structure is further provided.Type: ApplicationFiled: April 15, 2015Publication date: July 27, 2017Inventor: Steven Brett WALKER
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Publication number: 20170107390Abstract: A conductive ink for a rollerball pen comprises an aqueous solvent and conductive particles comprising one or more metals dispersed therein at a concentration of at least about 30 wt. %. The conductive particles include conductive flakes and conductive nanoparticles. A dispersant coats the conductive particles at a loading level of at least about 0.1 mg/m2 to about 0.8 mg/m2. A conductive trace deposited on a substrate from a rollerball pen comprises a percolative network of conductive particles comprising one or more metals. The conductive particles include conductive flakes and conductive nanoparticles. The conductive trace has a conductivity of at least about 1% of a bulk metal conductivity and a reflectance of greater than 40%.Type: ApplicationFiled: May 21, 2015Publication date: April 20, 2017Inventors: Steven Brett WALKER, Analisa RUSSO
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Publication number: 20150299489Abstract: The present invention provides an ink composition. The composition comprises a metal ion and a ligand. The ink composition is in a form of solid at a temperature of less than about 30° C. and in a form of liquid at temperature of above about 40 to about 80° C.Type: ApplicationFiled: April 15, 2015Publication date: October 22, 2015Inventor: Steven Brett Walker
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Publication number: 20150298248Abstract: A bonded structure formed by a low-temperature bonding method comprises a first substrate bonded to a second substrate by a conductive layer comprising a metal. The conductive layer includes a first interfacial portion adjacent to the first substrate, a second interfacial portion adjacent to the second substrate, and a central portion between the first and second interfacial portions. The first and second interfacial portions comprise an interfacial conductivity of from about 1% to about 20% of a bulk conductivity of the metal, and the central portion comprises from greater than 20% to about 80% of the bulk conductivity of the metal. The bonded structure comprises a bond strength of from about 10 lbf to about 200 lbf.Type: ApplicationFiled: April 15, 2015Publication date: October 22, 2015Inventors: Steven Brett Walker, Melburne C. LeMieux