Patents by Inventor Frederick M. MacDonnell

Frederick M. MacDonnell 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).

  • Publication number: 20230372888
    Abstract: Disclosed herein are systems for more efficient production of aluminum chlorohydrates, where the systems comprise a support element and/or metal catalyst, where the support element is configured to support the metal reagent in the system. Methods for efficient production of aluminum chlorohydrates are also disclosed.
    Type: Application
    Filed: May 8, 2023
    Publication date: November 23, 2023
    Inventors: Frederick M. MacDonnell, Brian Dennis, Mark Hulsizer
  • Publication number: 20230322573
    Abstract: In one aspect, methods of producing polyaluminum chlorides are described herein which, in some embodiments, provide increased reaction rates and/or reductions in stoichiometric excesses of aluminum feedstock. In some embodiments, a method of producing polyaluminum chloride comprises providing a feedstock comprising aluminum, contacting the feedstock with a solution comprising hydrochloric acid and one or more transition metal compounds, and catalyzing formation of the polyaluminum chloride with the one or more transition metals. As described further herein, the one or more transition metal compounds can comprise a transition metal coordination complex, transition metal salt, or mixtures thereof.
    Type: Application
    Filed: July 30, 2021
    Publication date: October 12, 2023
    Inventors: Seyed Amir Jafari GHORESHI, Mohammad Fakrul ISLAM, Wilaiwan CHANMANEE, Brian H. DENNIS, Frederick M. MACDONNELL
  • Publication number: 20230202858
    Abstract: A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.
    Type: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Applicants: C-KOE Mentals, L.P., Board of Regents, The University of Texas System
    Inventors: Chase McTaggart, Brian Hodges, Charles Koetting, Frederick M. MacDonnell, Brian Dennis, Mark Hulsizer
  • Patent number: 11666893
    Abstract: Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.
    Type: Grant
    Filed: August 3, 2021
    Date of Patent: June 6, 2023
    Inventors: Frederick M. MacDonnell, Brian H. Dennis
  • Patent number: 11583817
    Abstract: A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.
    Type: Grant
    Filed: March 4, 2019
    Date of Patent: February 21, 2023
    Assignees: C-Koe Metals, L.P., The Board of Regents, The University of Texas System
    Inventors: Chase McTaggart, Brian Hodges, Charles Koetting, Frederick M. MacDonnell, Brian Dennis, Mark Hulsizer
  • Publication number: 20220002154
    Abstract: In some embodiments, a system for producing synthesis gas, the system including a reactor including a burner, a combustion chamber, and a catalyst chamber, and a mixer upstream of the reactor configured to mix fuel with steam to produce humidified fuel that is provided to the burner of the reactor.
    Type: Application
    Filed: October 30, 2019
    Publication date: January 6, 2022
    Applicant: Board of Regents of The University of Texas System
    Inventors: Brian H. Dennis, Frederick M. MacDonnell
  • Publication number: 20210404654
    Abstract: In one embodiment, a burner for use in synthesis gas production includes multiple burner units each configured to deliver fuel and oxygen to a combustion chamber, each burner unit including an inner outlet pipe configured to deliver fuel and an outer outlet pipe configured to deliver oxygen, the outer outlet pipe concentrically surrounding the inner outlet pipe.
    Type: Application
    Filed: October 30, 2019
    Publication date: December 30, 2021
    Applicant: Board of Regents of The University of Texas System
    Inventors: Brian H. Dennis, Frederick M. MacDonnell
  • Patent number: 11110438
    Abstract: Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.
    Type: Grant
    Filed: July 31, 2019
    Date of Patent: September 7, 2021
    Inventors: Frederick M. MacDonnell, Brian H. Dennis
  • Publication number: 20200398242
    Abstract: A method of producing aluminum chlorohydrate comprises adding small form aluminum metal pellets to a reactant receiving space of a reactor tank to form a pellet bed; adding aqueous hydrochloric acid to the reactant receiving space of the reactor tank; and continuously circulating the aqueous hydrochloric acid through the pellet bed. In some embodiments, the continuously circulating aqueous hydrochloric acid dispels reaction gases from the pellet bed. Methods described herein can, in some cases, further comprise consecutively adding additional small form aluminum metal pellets to the reactant receiving space of the reactor tank as the small form aluminum metal pellets are consumed in the pellet bed.
    Type: Application
    Filed: March 4, 2019
    Publication date: December 24, 2020
    Applicants: C-KOE Metals, L.P., Board of Regents, The University of Texas System
    Inventors: Mark Hulsizer, Chase McTaggart, Brian Hodges, Charles KOETTING, Frederick M. MacDONNELL, Brian DENNIS
  • Publication number: 20200038846
    Abstract: Described herein are catalysts relating to liquid synthesis, methods of their preparation, and methods of their use. In an embodiment according to the present disclosure, a method of producing a catalyst for liquid synthesis comprises: providing a silica oxide support; pretreating the silica oxide support to remove air and moisture; impregnating the pretreated silica oxide support with cobalt from a cobalt source using a cobalt impregnation method; and calcinating the impregnated silica oxide support in an oven with a temperature ramping profile, wherein the calcinating comprises feeding air into the oven.
    Type: Application
    Filed: July 31, 2019
    Publication date: February 6, 2020
    Inventors: Frederick M. MacDonnell, Brian H. Dennis
  • Patent number: 9816075
    Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.
    Type: Grant
    Filed: November 3, 2014
    Date of Patent: November 14, 2017
    Assignee: Board of Regents, The University of Texas System
    Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
  • Patent number: 9580659
    Abstract: Methods for the conversion of lignites, subbituminous coals and other carbonaceous feedstocks into synthetic oils, including oils with properties similar to light weight sweet crude oil using a solvent derived from hydrogenating oil produced by pyrolyzing lignite are set forth herein. Such methods may be conducted, for example, under mild operating conditions with a low cost stoichiometric co-reagent and/or a disposable conversion agent.
    Type: Grant
    Filed: January 12, 2014
    Date of Patent: February 28, 2017
    Assignee: The Board of Regents of the University of Texas System
    Inventors: Frederick M. MacDonnell, Brian H. Dennis, Richard E. Billo, John W. Priest
  • Publication number: 20160040072
    Abstract: Methods for the conversion of lignites, subbituminous coals and other carbonaceous feedstocks into synthetic oils, including oils with properties similar to light weight sweet crude oil using a solvent derived from hydrogenating oil produced by pyrolyzing lignite are set forth herein. Such methods may be conducted, for example, under mild operating conditions with a low cost stoichiometric co-reagent and/or a disposable conversion agent.
    Type: Application
    Filed: January 12, 2014
    Publication date: February 11, 2016
    Inventors: Frederick M. MacDonnell, Brian H. Dennis, Richard E. Billo, John W. Priest
  • Publication number: 20150152390
    Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.
    Type: Application
    Filed: November 3, 2014
    Publication date: June 4, 2015
    Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
  • Patent number: 8877215
    Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.
    Type: Grant
    Filed: August 1, 2012
    Date of Patent: November 4, 2014
    Assignee: Board of Regents, The University of Texas System
    Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
  • Publication number: 20120295880
    Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.
    Type: Application
    Filed: August 1, 2012
    Publication date: November 22, 2012
    Applicant: Board of Regents, The University of Texas System
    Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awashti
  • Patent number: 8246967
    Abstract: Compositions and methods for modifying one or more biologic targets are provided. Suitable targets include cells, DNA, proteins, enzymes, and/or a subject in need thereof. The compositions may exist as a monomer or multimer and are active in a biologic environment with enhanced activity in hypoxic environments and, thus, exhibit improved specificity for hypoxic biologic targets (e.g., tumorigenic cells and those undergoing uncontrolled cell growth). A composition typically comprises a complex with an overall charge of 2+ or greater having at least one ruthenium atom attached to a redox active ligand. The redox active ligand helps maintain separation of more than one ruthenium atom. Suitable compositions may further include a terminal ligand comprising a heterocyclic aromatic compound. When provided to a biologic target, the composition modifies the biologic target and no additional compounds need be provided. Suitable compositions are typically catalytic and regenerative in the presence of a reducing agent.
    Type: Grant
    Filed: August 1, 2006
    Date of Patent: August 21, 2012
    Inventors: Frederick M. MacDonnell, Thamara K. Janaratne, Sanjay Awasthi
  • Patent number: 5786496
    Abstract: The present invention provides a new tetradentate bis-amido bis-alkoxo, 1,2-(bis-2,20diphenyl-2-hydroxyethanamido)benzene (H.sub.4 PHAB) and various derivatives thereof. This ligand is able to stabilize high valen metal oxo complexes by providing strong sigma donor ligands and through the use of steric bulk to prevent decomposition via formation of the .mu.-oxo dimers. Disclosed are novel metal oxo structural chemistry and oxidation reactions carried out with the novel metal oxo complexes.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: July 28, 1998
    Assignee: Northwestern University
    Inventors: Thomas V. O'Halloran, Frederick M. MacDonnell, Nathanael L. P. Fackler