Patents by Inventor Edwin Alfonso Argueta Fajardo

Edwin Alfonso Argueta Fajardo 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: 11596894
    Abstract: The invention generally relates to a process for purifying a hydrogen gas for use in a fuel cell. The process involves taking a hydrogen feed stream from a high-pressure tank and passing it through a purifier comprising an adsorbent to provide a purified hydrogen stream which is sent to a fuel cell. A particular adsorbent which can be used is a metal-organic framework composition. The adsorbent can be housed in a device such as a canister or cartridge having an inlet and outlet port.
    Type: Grant
    Filed: May 20, 2021
    Date of Patent: March 7, 2023
    Assignee: NuMat Technologies Inc.
    Inventors: William Morris, William Joseph Hoover, Ross James Verploegh, Edwin Alfonso Argueta Fajardo, Alexander Matthew Ruddick
  • 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: 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: 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: 20210362088
    Abstract: The invention generally relates to a process for purifying a hydrogen gas for use in a fuel cell. The process involves taking a hydrogen feed stream from a high-pressure tank and passing it through a purifier comprising an adsorbent to provide a purified hydrogen stream which is sent to a fuel cell. A particular adsorbent which can be used is a metal-organic framework composition. The adsorbent can be housed in a device such as a canister or cartridge having an inlet and outlet port.
    Type: Application
    Filed: May 20, 2021
    Publication date: November 25, 2021
    Applicant: NuMat Technologies Inc.
    Inventors: William Morris, William Joseph Hoover, Ross James Verploegh, Edwin Alfonso Argueta Fajardo, Alexander Matthew Ruddick
  • 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