Patents by Inventor Scott Mitchell

Scott Mitchell 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: 20260042718
    Abstract: This invention relates to a process for chemically treating a carbon-containing feedstock (e.g., a polymer-based feedstock), comprising contacting (e.g., by a hydrocracking reaction) the carbon-containing feedstock and a hydrogen stream in the presence of at least one hydrocracking catalyst to produce an alkane-containing product stream. The hydrocracking catalyst comprises at least one transition metal or transition metal sulfide supported on an oxide-containing support. This invention also relates to an alkane-containing mixture obtained by the process described herein and a system/apparatus for carrying out the process described herein.
    Type: Application
    Filed: August 8, 2025
    Publication date: February 12, 2026
    Inventors: Vibin Vargheese, Nichoias Wang, Matthew Feeney, Scott Mitchell
  • Publication number: 20260035318
    Abstract: A process for the cracking of a carbon-containing feedstock to produce olefins, aromatics and/or aliphatic includes contacting, in a reactor system, the carbon-containing feedstock with oxygen gas in the presence of a molten salt matrix consisting of a eutectic mixture of alkali metal carbonates, alkali metal hydroxides, alkali metal nitrates, alkali metal halides, alkaline earth metal carbonates, alkaline earth metal hydroxides, alkali earth nitrates, alkaline earth metal halides, rare earth metal carbonates, transition metal carbonates, transition metal hydroxides, transition metal nitrates, transition metal halides, or a mixture of any two or more thereof, to generate an olefin-containing product stream; and collecting an olefin from the olefin-containing product stream; wherein the oxygen is fed with the carbon-containing feedstock in a gas stream comprising from greater than 0 wt % to about 21 wt % oxygen in an inert gas; and the process is conducted in the absence of a catalyst
    Type: Application
    Filed: July 30, 2025
    Publication date: February 5, 2026
    Applicant: Braskem America, Inc.
    Inventors: Samuel Lin Tin Chee Leung, Charles Ambrass, Goutham Kothamreddy, Jan Kalfus, Scott Mitchell
  • Publication number: 20250304600
    Abstract: The invention provides compounds of formulae (I), or pharmaceutically acceptable salts and pharmaceutical compositions thereof, which are useful as protein kinase inhibitors; as well as methods for using such compounds to treat, ameliorate or prevent a condition associated with abnormal or deregulated kinase activity. In some embodiments, the invention provides methods for using such compounds to treat, ameliorate or prevent diseases or disorders that involve abnormal activation of c-kit or c-kit, CSF1R, and PDGFR (PDGFR?, PDGFR?) kinases.
    Type: Application
    Filed: February 7, 2025
    Publication date: October 2, 2025
    Inventors: Jiajun ZHANG, Yuk Ming SIU, Peilin XU, Matthew C. RHODES, Hui CAO, Yat Sun OR, Xuri GAO, Wei LI, Xuechao XING, Scott MITCHELL
  • Publication number: 20250304542
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, thereof: which inhibit the cellular entry of hepatitis B virus (HBV) and/or hepatitis D virus (HDV) or interfere with the function of the life cycle of HBV and/or HDV and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HBV and/or HDV infection. The invention also relates to methods of treating an HBV and/or HDV infection in a subject by administering a therapeutically effective amount of a compound of the present invention.
    Type: Application
    Filed: March 10, 2025
    Publication date: October 2, 2025
    Inventors: Sean RAFFERTY, William CASSELS, Samuel BARTLETT, Nathaniel Thomas KENTON, Jonathan THIELMAN, Joseph D. PANARESE, Scott MITCHELL
  • Publication number: 20250276308
    Abstract: The present disclosure relates to a heterogeneous catalyst composition comprising a metal catalyst chemically interacted with a micro-mesoporous aluminosilicate support. A process for catalytic oxidative dehydrogenation of hydrocarbons may include contacting, in a reactor system, a hydrocarbon-containing feedstock with the heterogeneous catalyst composition to generate olefinic compounds. A process for preparing a heterogeneous catalyst composition may include combining a micro-mesoporous aluminosilicate support with a metal catalyst precursor to form a catalyst precursor mixture, and heating the catalyst precursor mixture to a temperature of about 390° C. to about 750° C. to form a heterogeneous catalyst composition.
    Type: Application
    Filed: March 3, 2025
    Publication date: September 4, 2025
    Applicant: Braskem America, Inc.
    Inventors: Ishant Khurana, Dan Xie, Graham Gregorich, Scott Mitchell
  • Patent number: 12358921
    Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit Human Respiratory Syncytial Virus (HRSV) or Human Metapneumovirus (HMPV) inhibitors. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HRSV or HMPV infection. The invention also relates to methods of treating an HRSV or HMPV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Grant
    Filed: April 6, 2023
    Date of Patent: July 15, 2025
    Assignee: Enanta Pharmaceuticals, Inc.
    Inventors: Adam Szymaniak, Robert Leon, Kevin McGrath, Xiben Li, Tyler J. Mann, Jianming Yu, In Jong Kim, Scott Mitchell, Yat Sun Or
  • Publication number: 20250154163
    Abstract: The present invention provides compounds of Formula (I), pharmaceutical compositions comprising these compounds and methods of using these compounds for treating a metabolic disease or liver condition. The present invention relates generally to compounds and pharmaceutical compositions useful as 17?-HSD13 inhibitors. Specifically, the present invention relates to compounds useful as inhibitors of 17?-HSD13 and methods for their preparation and use.
    Type: Application
    Filed: October 25, 2024
    Publication date: May 15, 2025
    Inventors: Yat Sun OR, Joseph D. PANARESE, Guoqiang WANG, Jing HE, Jiang LONG, Jun MA, Bin WANG, Sourav GHORAI, Scott MITCHELL, Tao WANG, Weipeng HU, Han Seul PARK, Xin ZHANG, Hui CAO
  • Publication number: 20250101319
    Abstract: This invention relates to a process for chemically treating a carbon-containing feedstock (e.g., a polymer-based feedstock), comprising contacting (e.g., by a hydrocracking reaction) the carbon-containing feedstock and a hydrogen stream in the presence of at least one hydrocracking catalyst to produce an alkane-containing product stream. The hydrocracking catalyst comprises at least one transition metal or transition metal sulfide supported on an oxide-containing support. This invention also relates to an alkane-containing mixture obtained by the process described herein and a system/apparatus for carrying out the process described herein.
    Type: Application
    Filed: September 26, 2024
    Publication date: March 27, 2025
    Inventors: Vibin Vargheese, Nicholas Wang, Matthew Feeney, Ishant Khurana, Jan Kalfus, Scott Mitchell, Richard Opfer
  • Publication number: 20250074845
    Abstract: A heterogeneous catalyst composition including a metal and boron catalyst with boron dispersed in a molten matrix, where the molten matrix includes a eutectic mixture of alkali metal or alkaline earth metal salts or hydroxides. A process for preparing a heterogeneous catalyst composition, including combining a mixture of alkali metal or alkaline earth metal salts or hydroxides to form a matrix including a eutectic mixture, adding, to the matrix, a boron precursor and at least one metal catalyst precursor to form a catalyst precursor mixture, and heating the catalyst precursor mixture to a temperature of from 390° C. to 750° C. to form the heterogeneous catalyst composition. A process for catalytic oxidative dehydrogenation of hydrocarbons whereby a hydrocarbon-containing feedstock contacts the heterogeneous catalyst composition to generate olefinic compounds.
    Type: Application
    Filed: September 6, 2024
    Publication date: March 6, 2025
    Applicant: Braskem America, Inc.
    Inventors: Ishant Khurana, Graham Gregorich, Matthew Feeney, Scott Mitchell
  • Publication number: 20250059174
    Abstract: The invention provides compounds of formulae (I), or pharmaceutically acceptable salts and pharmaceutical compositions thereof, which are useful as protein kinase inhibitors; as well as methods for using such compounds to treat, ameliorate or prevent a condition associated with abnormal or deregulated kinase activity. In some embodiments, the invention provides methods for using such compounds to treat, ameliorate or prevent diseases or disorders that involve abnormal activation of c-kit or c-kit, CSF1R, and PDGFR (PDGFR?, PDGFR?) kinases.
    Type: Application
    Filed: August 8, 2024
    Publication date: February 20, 2025
    Inventors: Jiajun ZHANG, Yuk Ming SIU, Peilin XU, Matthew C. RHODES, Hui CAO, Yat Sun OR, Xuri GAO, Wei LI, Xuechao XING, Scott MITCHELL
  • Publication number: 20250042898
    Abstract: The invention provides compounds of formulae (I), or pharmaceutically acceptable salts and pharmaceutical compositions thereof, which are useful as protein kinase inhibitors; as well as methods for using such compounds to treat, ameliorate or prevent a condition associated with abnormal or deregulated kinase activity. In some embodiments, the invention provides methods for using such compounds to treat, ameliorate or prevent diseases or disorders that involve abnormal activation of c-kit or c-kit, CSF1R, and PDGFR (PDGFR?, PDGFR?) kinases.
    Type: Application
    Filed: July 24, 2024
    Publication date: February 6, 2025
    Inventors: Yuk Ming SIU, Jiajun ZHANG, Matthew C. RHODES, Peilin XU, Hui CAO, Scott MITCHELL, Yat Sun OR
  • Publication number: 20250019323
    Abstract: A heterogeneous catalyst composition may include a metal catalyst supported on a porous mixed metal oxide support. A process for catalytic oxidative dehydrogenation of hydrocarbons may include contacting, in a reactor system, a hydrocarbon-containing feedstock with the heterogeneous catalyst composition to generate olefinic compounds. A process for preparing a heterogeneous catalyst composition may include combining a porous mixed metal oxide support with at least one metal catalyst precursor to form a catalyst precursor mixture, wherein the at least one metal catalyst precursor comprises at least one metal compound selected from the group consisting of transition metal compounds, rare-earth metal compounds, or a mixture thereof, and heating the catalyst precursor mixture to a temperature of about 390° C. to about 750° C. to form a heterogeneous catalyst composition.
    Type: Application
    Filed: June 21, 2024
    Publication date: January 16, 2025
    Applicant: Braskem America, Inc.
    Inventors: Ishant Khurana, Graham Gregorich, Scott Mitchell
  • Publication number: 20240368096
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, which inhibit the cellular entry of hepatitis B virus (HBV) and/or hepatitis D virus (HDV) or interfere with the function of the life cycle of HBV and/or HDV and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HBV and/or HDV infection. The invention also relates to methods of treating an HBV and/or HDV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Application
    Filed: February 21, 2024
    Publication date: November 7, 2024
    Inventors: Samuel BARTLETT, Joseph D. PANARESE, Sourav GHORAI, Nathaniel Thomas KENTON, Sean RAFFERTY, Jonathan THIELMAN, Peilin XU, Bin WANG, William CASSELS, Scott MITCHELL, Yat Sun OR
  • Publication number: 20240368174
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, esters, or prodrugs thereof: which inhibit Human Respiratory Syncytial Virus (HRSV) or Human Metapneumovirus (HMPV) inhibitors. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HRSV or HMPV infection. The invention also relates to methods of treating an HRSV or HMPV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Application
    Filed: April 5, 2024
    Publication date: November 7, 2024
    Inventors: Adam SZYMANIAK, Robert LEON, Kevin McGRATH, Xiben LI, Tyler J. MANN, Jianming YU, In Jong KIM, Scott MITCHELL, Yat Sun OR
  • Publication number: 20240325409
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, thereof: which inhibit the cellular entry of hepatitis B virus (HBV) and/or hepatitis D virus (HDV) or interfere with the function of the life cycle of HBV and/or HDV and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HBV and/or HDV infection. The invention also relates to methods of treating an HBV and/or HDV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Application
    Filed: February 26, 2024
    Publication date: October 3, 2024
    Inventors: Sean RAFFERTY, Sourav GHORAI, Nathaniel Thomas KENTON, Peilin XU, Samuel BARTLETT, Scott MITCHELL, Joseph D. PANARESE, Yat Sun OR
  • Publication number: 20240327334
    Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: December 20, 2023
    Publication date: October 3, 2024
    Inventors: Xuri GAO, Bin WANG, Hui CAO, Jiajun ZHANG, Yuk Ming SIU, Jiang LONG, Wei LI, Matthew C. RHODES, Xuechao XING, Jianming YU, Scott MITCHELL, Yat Sun OR
  • Publication number: 20240287391
    Abstract: A process for the cracking of a carbon-containing feedstock to produce olefins, the process includes contacting, in a reactor system, the carbon-containing feedstock with a molten salt matrix consisting of a eutectic mixture of alkali metal carbonates, alkaline earth metal carbonates, or a mixture of any two or more thereof, to generate an olefin-containing product stream; and collecting an olefin from the olefin-containing product stream; wherein: the process is conducted in the absence of oxygen, and in the absence of a catalyst comprising a transition metal, a transition metal oxide, a rare-earth metal, a rare earth metal oxide, or a combination of any two or more thereof.
    Type: Application
    Filed: February 5, 2024
    Publication date: August 29, 2024
    Applicant: Braskem America, Inc.
    Inventors: Samuel L. Leung, Nicholas Wang, Katherine McCullough, Goutham Kothamreddy, Charles Ambrass, Matthew Feeney, Jan Kalfus, Scott Mitchell
  • Publication number: 20240279557
    Abstract: A process for the cracking of a carbon-containing feedstock to produce olefins includes contacting, in a reactor system, the carbon-containing feedstock with oxygen gas in the presence of a molten salt matrix consisting of a eutectic mixture of alkali metal carbonates, alkaline earth metal carbonates, or a mixture of any two or more thereof, to generate an olefin-containing product stream; and collecting an olefin from the olefin-containing product stream; wherein: the oxygen is fed with the carbon-containing feedstock in a gas stream comprising from greater than 0 wt % to about 21 wt % oxygen in an inert gas; the process is conducted in the absence of a catalyst comprising a transition metal, a transition metal oxide, a rare-earth metal, a rare earth metal oxide, or a combination of any two or more thereof; and the process is conducted in the absence of a glass-forming oxide.
    Type: Application
    Filed: February 5, 2024
    Publication date: August 22, 2024
    Applicant: Braskem America, Inc.
    Inventors: Samuel L. Leung, Nicholas Wang, Katherine McCullough, Goutham Kothamreddy, Charles Ambrass, Matthew Feeney, Jan Kalfus, Scott Mitchell
  • Publication number: 20240207224
    Abstract: The present invention discloses compounds of Formula (I), and pharmaceutically acceptable salts, thereof: which inhibit coronavirus replication activity. The invention further relates to pharmaceutical compositions comprising a compound of Formula (I) or a pharmaceutically acceptable salt thereof, and methods of treating or preventing a coronavirus infection in a subject in need thereof, comprising administering to the subject a therapeutically effective amount of a compound of Formula (I) or a pharmaceutically acceptable salt thereof.
    Type: Application
    Filed: November 15, 2023
    Publication date: June 27, 2024
    Inventors: Jiajun Zhang, Xuri Gao, Hui Cao, Yuk Ming Siu, Bin Wang, Jiang Long, Wei Li, Matthew C. Rhodes, Xuechao Xing, Scott Mitchell, Yat Sun Or
  • Publication number: 20240140922
    Abstract: The present invention discloses compounds of Formula (I), or pharmaceutically acceptable salts, thereof: which inhibit the cellular entry of hepatitis B virus (HBV) and/or hepatitis D virus (HDV) or interfere with the function of the life cycle of HBV and/or HDV and are also useful as antiviral agents. The present invention further relates to pharmaceutical compositions comprising the aforementioned compounds for administration to a subject suffering from HBV and/or HDV infection. The invention also relates to methods of treating an HBV and/or HDV infection in a subject by administering a pharmaceutical composition comprising the compounds of the present invention.
    Type: Application
    Filed: August 22, 2023
    Publication date: May 2, 2024
    Inventors: Samuel Bartlett, Joseph D. Panarese, Sourav Ghorai, Nathaniel Thomas Kenton, Sean Rafferty, Jonathan Thielman, Peilin Xu, Bin Wang, William Cassels, Scott Mitchell, Yat Sun Or