Patents by Inventor Mitchell Hugh WESTON

Mitchell Hugh WESTON 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).

  • Patent number: 11958033
    Abstract: This invention relates to modified MOF materials, methods of preparing them and processes using them. A modified MOF of the invention is modified by impregnating a MOF with an inorganic metal salt. The starting MOF contains at least one linker or ligand which contains an aryl amino group as part of its structure. These modified MOFs are able to adsorb either basic or acidic toxic industrial compounds (TIC). The modified MOFs can be used to remove TICs from various gaseous streams such as air.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: April 16, 2024
    Assignee: NuMat Technologies, Inc.
    Inventors: Mitchell Hugh Weston, William Morris, William Joseph Hoover, Patrick Emmett Fuller, John Paul Siegfried, Randi Danielle Groy, Jeffrey Loren Wells, Timothy Chiaan Wang, Edwin Alfonso Argueta Fajardo
  • Patent number: 11958034
    Abstract: This invention relates to metal organic framework (MOF) compositions, methods of preparing them and methods of using them. The MOF compositions are characterized in that at least a portion of the linker molecule is an amino containing organic linker. The MOF also has a crystal size of greater than 1 ?m and has been treated with an acid wash to provide a MOF in which at least 55% of the amino groups are activated amino groups of the form —NH2. The MOF compositions are useful in adsorbing various contaminants from various gas stream. One specific example is adsorbing NO2 from an air stream.
    Type: Grant
    Filed: March 30, 2021
    Date of Patent: April 16, 2024
    Assignee: NuMat Technologies, Inc.
    Inventors: Mitchell Hugh Weston, Edwin Alfonso Argueta Fajardo, William Morris, John Paul Siegfried, Patrick Emmett Fuller
  • Patent number: 11679373
    Abstract: This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.
    Type: Grant
    Filed: January 7, 2022
    Date of Patent: June 20, 2023
    Assignee: NuMat Technologies, Inc.
    Inventors: Mitchell Hugh Weston, Edwin Alfonso Argueta Fajardo
  • Patent number: 11642650
    Abstract: This invention relates to a method of using MOF adsorbents to remove elemental impurities from feed streams comprising active pharmaceutical ingredients (API). The process involves contacting the feed stream comprising API and elemental impurities with the MOF at purification conditions to obtain a purified stream with provides an API which has a concentration of the elemental impurity below its permitted daily exposure. The process can be carried in a batch mode where the MOF and feed stream are admixed in a vessel for a given amount of time or continuously by flowing the feed stream through a column or adsorbent bed containing the MOF adsorbent.
    Type: Grant
    Filed: May 13, 2021
    Date of Patent: May 9, 2023
    Assignee: NuMat Technologies Inc.
    Inventors: William Morris, Timothy Chiaan Wang, Mitchell Hugh Weston, Vincent Rinaolo
  • Publication number: 20230038608
    Abstract: Functionalized polymer adsorbents for removing impurities from a feed stream comprising an active pharmaceutical ingredient (API) include particles of functionalized with at least one functional moiety capable of binding one or more contaminants, the polymer being a macroreticular polymer and the functionalized polymer adsorbents having a pore volume of at least 0.65 cm3/g. Alternatively, the adsorbent can comprise a polymer functionalized with either 2,4,6,-dimercaptotriazine-ethylenedithiol (DMT-EDT) adduct, 2,4,6,-trimercaptotriazine-ethylenedithiol (TMT-EDT) adduct, or a combination thereof, and the polymer can be either a macroreticular polymer or a swellable polymer. The adsorbents can be used in either continuous or batch processes for removing contaminants from an API-containing feed stream wherein the contaminants can include elemental impurities, particularly palladium.
    Type: Application
    Filed: July 18, 2022
    Publication date: February 9, 2023
    Applicant: NuMat Technologies, Inc.
    Inventors: Glenn McPherson Tom, Natalie Nicholls, Mitchell Hugh Weston, Nicolaas Vermeulen, Vincent Rinaolo
  • Publication number: 20220126268
    Abstract: This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.
    Type: Application
    Filed: January 7, 2022
    Publication date: April 28, 2022
    Applicant: NuMat Technologies Inc.
    Inventors: Mitchell Hugh Weston, Edwin Alfonso Argueta Fajardo
  • Patent number: 11253838
    Abstract: This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.
    Type: Grant
    Filed: August 14, 2020
    Date of Patent: February 22, 2022
    Assignee: NuMat Technologies Inc.
    Inventors: Mitchell Hugh Weston, Edwin Alfonso Argueta Fajardo
  • Publication number: 20210379560
    Abstract: This invention relates to metal organic framework (MOF) compositions, methods of preparing them and methods of using them. The MOF compositions are characterized in that at least a portion of the linker molecule is an amino containing organic linker. The MOF also has a crystal size of greater than 1 ?m and has been treated with an acid wash to provide a MOF in which at least 55% of the amino groups are activated amino groups of the form —NH2. The MOF compositions are useful in adsorbing various contaminants from various gas stream. One specific example is adsorbing NO2 from an air stream.
    Type: Application
    Filed: March 30, 2021
    Publication date: December 9, 2021
    Applicant: NuMat Technologies Inc.
    Inventors: Mitchell Hugh Weston, Edwin Alfonso Argueta Fajardo, William Morris, John Paul Siegfried, Patrick Emmett Fuller
  • Publication number: 20210379559
    Abstract: This invention relates to modified MOF materials, methods of preparing them and processes using them. A modified MOF of the invention is modified by impregnating a MOF with an inorganic metal salt. The starting MOF contains at least one linker or ligand which contains an aryl amino group as part of its structure. These modified MOFs are able to adsorb either basic or acidic toxic industrial compounds (TIC). The modified MOFs can be used to remove TICs from various gaseous streams such as air.
    Type: Application
    Filed: March 30, 2021
    Publication date: December 9, 2021
    Applicant: NUMAT TECHNOLOGIES INC.
    Inventors: Mitchell Hugh Weston, William Morris, William Joseph Hoover, Patrick Emmett Fuller, John Paul Siegfried, Randi Danielle Groy, Jeffrey Loren Wells, Timothy Chiaan Wang, Edwin Alfonso Argueta Fajardo
  • Publication number: 20210354107
    Abstract: This invention relates to a method of using MOF adsorbents to remove elemental impurities from feed streams comprising active pharmaceutical ingredients (API). The process involves contacting the feed stream comprising API and elemental impurities with the MOF at purification conditions to obtain a purified stream with provides an API which has a concentration of the elemental impurity below its permitted daily exposure. The process can be carried in a batch mode where the MOF and feed stream are admixed in a vessel for a given amount of time or continuously by flowing the feed stream through a column or adsorbent bed containing the MOF adsorbent.
    Type: Application
    Filed: May 13, 2021
    Publication date: November 18, 2021
    Applicant: NuMat Technologies Inc.
    Inventors: William Morris, Timothy Chiaan Wang, Mitchell Hugh Weston, Vincent Rinaolo
  • Publication number: 20210046446
    Abstract: This invention relates to a Cu-BTC MOF which is water stable. The Cu-BTC MOF has been modified by substituting some of the BTC ligand (1,3,5, benzene tricarboxylic acid) with 5-aminoisophthalic acid (AIA). The resultant MOF retains at least 40% of its as synthesized surface area after exposure to liquid water at 60° C. for 6 hours. This is an unexpected result versus the MOF containing only the BTC ligand. This MOF can be used to abate contaminants such as ammonia in gas streams and especially air streams.
    Type: Application
    Filed: August 14, 2020
    Publication date: February 18, 2021
    Applicant: Numat Technologies Inc.
    Inventors: Mitchell Hugh Weston, Edwin Alfonso Argueta Fajardo
  • Patent number: 10632450
    Abstract: A metal-organic framework (MOF) structure comprising at least one metal ion and at least one multidentate organic ligand which is coordinately bonded to said metal ion, and a scaffold.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: April 28, 2020
    Assignee: NUMAT TECHNOLOGIES, INC.
    Inventors: Patrick Fuller, Mitchell Hugh Weston, William Morris, William Hoover
  • Patent number: 10260148
    Abstract: A porous material, including metal organic frameworks (MOFs) and porous organic polymer (POP), with reactivity with or sorptive affinity towards (a) electronic gas to substantially remove or abate electronic gas in an electronic gas-containing effluent, or (b) contaminants in a stream of electronic gas to substantially remove the contaminants from a stream of electronic gas and increase the purity of said electronic gas, or (c) trace mercury contaminant in a hydrocarbon stream to substantially remove said mercury contaminant and increase the purity of said hydrocarbon stream. MOFs are the coordination product of metal ions and multidentate organic ligands, whereas POPs are the product of polymerization between organic monomers.
    Type: Grant
    Filed: December 2, 2015
    Date of Patent: April 16, 2019
    Assignee: NUMAT TECHNOLOGIES, INC.
    Inventors: Paul Wai-Man Siu, Mitchell Hugh Weston
  • Publication number: 20190105598
    Abstract: A method of purifying a target fluid containing one or more impurities, the method includes providing the target fluid to a vessel having an adsorbent material located therein, where the absorbent material is a metal organic framework (MOF) or a porous organic polymer (POP), preferentially adsorbing either the target fluid or at least one of the one or more impurities on the adsorbent material, and venting the target fluid from the vessel if the impurities are preferentially adsorbed on the adsorbent material or venting the one or more impurities from the vessel if the target fluid is preferentially adsorbed on the adsorbent material.
    Type: Application
    Filed: October 5, 2018
    Publication date: April 11, 2019
    Inventors: Jose ARNO, Mitchell Hugh WESTON, Glenn M. TOM, Omar K. FARHA
  • Publication number: 20180272315
    Abstract: A metal-organic framework (MOF) structure comprising at least one metal ion and at least one multidentate organic ligand which is coordinately bonded to said metal ion, and a scaffold.
    Type: Application
    Filed: March 26, 2018
    Publication date: September 27, 2018
    Inventors: Patrick Fuller, Mitchell Hugh Weston, William Morris, William Hoover
  • Patent number: 9925516
    Abstract: A metal-organic framework (MOF) structure comprising at least one metal ion and at least one multidentate organic ligand which is coordinately bonded to said metal ion, and a scaffold.
    Type: Grant
    Filed: December 1, 2015
    Date of Patent: March 27, 2018
    Assignee: NUMAT TECHNOLOGIES, INC.
    Inventors: Patrick Fuller, Mitchell Hugh Weston, William Morris, William Hoover
  • Patent number: 9751074
    Abstract: A metal organic framework (MOF) includes a coordination product of a metal ion and an at least bidentate organic ligand, where the metal ion and the organic ligand are selected to provide a deliverable adsorption capacity of at least 70 g/l for an electronic gas. A porous organic polymer (POP) includes polymerization product from at least a plurality of organic monomers, where the organic monomers are selected to provide a deliverable adsorption capacity of at least 70 g/l for an electronic gas.
    Type: Grant
    Filed: August 17, 2015
    Date of Patent: September 5, 2017
    Assignee: NUMAT TECHNOLOGIES, INC.
    Inventors: Han Sung Kim, Mitchell Hugh Weston, Patrick Fuller, Paul Wai-Man Siu
  • Publication number: 20170203277
    Abstract: A metal organic framework (MOF) includes a coordination product of a metal ion and an at least bidentate organic ligand, where the metal ion and the organic ligand are selected to provide a deliverable adsorption capacity of at least 70 g/l for an electronic gas. A porous organic polymer (POP) includes polymerization product from at least a plurality of organic monomers, where the organic monomers are selected to provide a deliverable adsorption capacity of at least 70 g/l for an electronic gas.
    Type: Application
    Filed: April 5, 2017
    Publication date: July 20, 2017
    Inventors: Han Sung Kim, Mitchell Hugh Weston, Patrick Fuller, Paul Wai-Man Siu
  • Patent number: 9427722
    Abstract: Adsorption systems providing a capacity of at least 200 g/L for oxygen-containing mixtures, or an oxygen-nitrogen selectivity of at least 1.4:1 or at least 1:2 with an adsorbed capacity of at least 0.6 mmol/g at 4 bar and 22° C.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: August 30, 2016
    Assignee: NUMAT TECHNOLOGIES, INC.
    Inventors: Mitchell Hugh Weston, Patrick Fuller, Paul Wai-Man Siu
  • Publication number: 20160160348
    Abstract: A porous material, including metal organic frameworks (MOFs) and porous organic polymer (POP), with reactivity with or sorptive affinity towards (a) electronic gas to substantially remove or abate electronic gas in an electronic gas-containing effluent, or (b) contaminants in a stream of electronic gas to substantially remove the contaminants from a stream of electronic gas and increase the purity of said electronic gas, or (c) trace mercury contaminant in a hydrocarbon stream to substantially remove said mercury contaminant and increase the purity of said hydrocarbon stream. MOFs are the coordination product of metal ions and multidentate organic ligands, whereas POPs are the product of polymerization between organic monomers.
    Type: Application
    Filed: December 2, 2015
    Publication date: June 9, 2016
    Inventors: Paul Wai-Man SIU, Mitchell Hugh WESTON