Patents by Inventor William Tumas
William Tumas 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: 8329140Abstract: A method and system for storing and evolving hydrogen (H2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.Type: GrantFiled: September 11, 2008Date of Patent: December 11, 2012Assignee: Los Alamos National Security, LLCInventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
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Patent number: 8101786Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: GrantFiled: October 28, 2010Date of Patent: January 24, 2012Assignee: Los Alamos National Security, LLCInventors: David L Thorn, William Tumas, Daniel E Schwarz, Anthony K Burrell
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Publication number: 20110129411Abstract: A method and system for storing and evolving hydrogen (H2) employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.Type: ApplicationFiled: September 11, 2008Publication date: June 2, 2011Inventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
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Publication number: 20110105706Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: ApplicationFiled: October 28, 2010Publication date: May 5, 2011Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
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Patent number: 7837852Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: GrantFiled: July 31, 2009Date of Patent: November 23, 2010Assignee: Los Alamos National Security, LLCInventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
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Patent number: 7736531Abstract: A chemical system for storing and releasing hydrogen utilizes an endothermic reaction that releases hydrogen coupled to an exothermic reaction to drive the process thermodynamically, or an exothermic reaction that releases hydrogen coupled to an endothermic reaction.Type: GrantFiled: February 8, 2007Date of Patent: June 15, 2010Assignee: Los Alamos National Security, LLCInventors: David L. Thorn, William Tumas, Kevin C. Ott, Anthony K. Burrell
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Patent number: 7713506Abstract: Metal aminoboranes of the formula M(NH2BH3)n have been synthesized. Metal aminoboranes are hydrogen storage materials. Metal aminoboranes are also precursors for synthesizing other metal aminoboranes. Metal aminoboranes can be dehydrogenated to form hydrogen and a reaction product. The reaction product can react with hydrogen to form a hydrogen storage material. Metal aminoboranes can be included in a kit.Type: GrantFiled: May 7, 2008Date of Patent: May 11, 2010Assignee: Los Alamos National SecurityInventors: Anthony K. Burrell, Benjamin J. Davis, David L. Thorn, John C. Gordon, R. Thomas Baker, Troy Allen Semelsberger, William Tumas, Himashinie Vichalya Kaviraj Diyabalanage, Roshan P. Shrestha
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Publication number: 20090297423Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: ApplicationFiled: July 31, 2009Publication date: December 3, 2009Applicant: LOS ALAMOS NATIONAL SECURITY, LLCInventors: David L. Thorn, William Tumas, Daniel E. Schwarz, Anthony K. Burrell
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Publication number: 20080311017Abstract: Metal aminoboranes of the formula M(NH2BH3)n have been synthesized. Metal aminoboranes are hydrogen storage materials. Metal aminoboranes are also precursors for synthesizing other metal aminoboranes. Metal aminoboranes can be dehydrogenated to form hydrogen and a reaction product. The reaction product can react with hydrogen to form a hydrogen storage material. Metal aminoboranes can be included in a kit.Type: ApplicationFiled: May 7, 2008Publication date: December 18, 2008Inventors: Anthony K. Burrell, Benjamin J. Davis, David L. Thorn, John C. Gordon, R. Thomas Baker, Troy Allen Semelsberger, William Tumas, Himashinie Vichalya Kaviraj Diyabalanage, Roshan P. Shrestha
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Patent number: 7439369Abstract: A method and system for storing and evolving hydrogen employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.Type: GrantFiled: June 10, 2005Date of Patent: October 21, 2008Assignee: Loa Alamos National Security, LLCInventors: David L. Thorn, William Tumas, P. Jeffrey Hay, Daniel E. Schwarz, Thomas M. Cameron
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Publication number: 20080175781Abstract: Metal hydride materials react with BZ3 compounds in the presence of ligand to form BH3-L compounds. A compound of the formula HBZ2 is prepared from a compound of the formula BZ3 by reacting a first amount of a compound of the formula HBZ2 with a metal hydride material “MH” and a compound “L” to form a material of the formula BH3-L, and then reacting the BH3-L thus formed with a compound of the formula BZ3 to form HBZ2 in a second amount greater than the first amount of HBZ2. Z is selected from alkoxy, aryloxy, amido, arylamido, doubly substituted alkoxy, doubly substituted aryloxy, doubly substituted amido, doubly substituted arylamido, alkoxy-amido, and aryloxy-arylamido. When Z is bidentate, then HBZ2 has a ring structure. “L” is selected from ethers, aromatic ethers, amines, aromatic amines, heterocyclic nitrogen compounds, sulfides, aromatic sulfides, and heterocyclic sulfur compounds. “L” becomes a ligand in the BH3-L material.Type: ApplicationFiled: September 13, 2007Publication date: July 24, 2008Inventors: David L. Thorn, William Tumas
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Patent number: 7361327Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.Type: GrantFiled: August 17, 2005Date of Patent: April 22, 2008Assignee: Los Alamos National Security, LLCInventors: William Tumas, Kevin C. Ott, T. Mark McCleskey, Matthew Z. Yates, Eva R. Birnbaum
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Publication number: 20070292331Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.Type: ApplicationFiled: August 17, 2005Publication date: December 20, 2007Inventors: William Tumas, Kevin Ott, T. McCleskey, Matthew Yates, Eva Birnbaum
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Publication number: 20070189950Abstract: The reaction of halo-boron compounds (B—X compounds, compounds having one or more boron-halogen bonds) with silanes provides boranes (B—H compounds, compounds having one or more B—H bonds) and halosilanes. Inorganic hydrides, such as surface-bound silane hydrides (Si—H) react with B—X compounds to form B—H compounds and surface-bound halosilanes. The surface bound halosilanes are converted back to surface-bound silanes electrochemically. Halo-boron compounds react with stannanes (tin compounds having a Sn—H bond) to form boranes and halostannanes (tin compounds having a Sn—X bond). The halostannanes are converted back to stannanes electrochemically or by the thermolysis of Sn-formate compounds. When the halo-boron compound is BCl3, the B—H compound is B2H6, and where the reducing potential is provided electrochemically or by the thermolysis of formate.Type: ApplicationFiled: February 8, 2007Publication date: August 16, 2007Inventors: David Thorn, William Tumas, Daniel Schwarz, Anthony Burrell
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Publication number: 20070183967Abstract: A chemical system for storing and releasing hydrogen utilizes an endothermic reaction that releases hydrogen coupled to an exothermic reaction to drive the process thermodynamically, or an exothermic reaction that releases hydrogen coupled to an endothermic reaction.Type: ApplicationFiled: February 8, 2007Publication date: August 9, 2007Inventors: David L. Thorn, William Tumas, Kevin C. Ott, Anthony K. Burrell
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Publication number: 20060041175Abstract: A method and system for storing and evolving hydrogen employ chemical compounds that can be hydrogenated to store hydrogen and dehydrogenated to evolve hydrogen. A catalyst lowers the energy required for storing and evolving hydrogen. The method and system can provide hydrogen for devices that consume hydrogen as fuel.Type: ApplicationFiled: June 10, 2005Publication date: February 23, 2006Inventors: David Thorn, William Tumas, P. Hay, Daniel Schwarz, Thomas Cameron
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Patent number: 6949238Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.Type: GrantFiled: February 5, 2003Date of Patent: September 27, 2005Assignee: The Regents of the University of CaliforniaInventors: William Tumas, Kevin C. Ott, T. Mark McCleskey, Matthew Z. Yates, Eva R. Birnbaum
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Publication number: 20040151648Abstract: Novel zeolites are produced by combining a polar solute, a silicon or phosphorous source, and a structure directing agent. Surfactants and a hydrophobic solvent are added to the previously mixed three species and shaken to disperse the surfactants. The reverse microemulsion is stirred overnight, at about room temperature and then iced for five to ten minutes. A metal source is added vigorously shaken for about two minutes. The mixture is then aged for about two hours at about room temperature. A mineralizer is added and the resultant mixture aged for about two hours at about room temperature. The mixture is heated to about 180° C., for a suitable time period. The final novel product is then isolated.Type: ApplicationFiled: February 5, 2003Publication date: August 5, 2004Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIAInventors: William Tumas, Kevin C. Ott, T. Mark McCleskey, Matthew Z. Yates, Eva R. Birnbaum
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Patent number: 6747179Abstract: A method for carrying out a catalysis reaction in carbon dioxide comprising contacting a fluid mixture with a catalyst bound to a polymer, the fluid mixture comprising at least one reactant and carbon dioxide, wherein the reactant interacts with the catalyst to form a reaction product. A composition of matter comprises carbon dioxide and a polymer and a reactant present in the carbon dioxide. The polymer has bound thereto a catalyst at a plurality of chains along the length of the polymer, and wherein the reactant interacts with the catalyst to form a reaction product.Type: GrantFiled: August 18, 2000Date of Patent: June 8, 2004Assignees: North Carolina State University, The University of North Carolina at Chapel Hill, Regents of University of CaliforniaInventors: Joseph M. DeSimone, Eva Birnbaum, Ruben G. Carbonell, Stephanie Crette, James B. McClain, T. Mark McCleskey, Kimberly R. Powell, Timothy J. Romack, William Tumas
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Publication number: 20020188160Abstract: A process is provided for catalyzing an organic reaction to form a reaction product by placing reactants and a catalyst for the organic reaction, the catalyst of a metal complex and at least one ligand soluble within one of the phases of said aqueous biphasic system, within an aqueous biphasic system including a water phase, a dense phase fluid, and a surfactant adapted for forming an emulsion or microemulsion within the aqueous biphasic system, the reactants soluble within one of the phases of the aqueous biphasic system and convertible in the presence of the catalyst to a product having low solubility in the phase in which the catalyst is soluble; and, maintaining the aqueous biphasic system under pressures, at temperatures, and for a period of time sufficient for the organic reaction to occur and form the reaction product and to maintain sufficient density on the dense phase fluid, the reaction product characterized as having low solubility in the phase in which the catalyst is soluble.Type: ApplicationFiled: November 18, 1999Publication date: December 12, 2002Inventors: GUNILLA B. JACOBSON, WILLIAM TUMAS, KEITH P. JOHNSTON