Patents by Inventor David Sullivan

David Sullivan 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: 20250340583
    Abstract: Disclosed herein are new salts and polymorphs of cethromycin for the treatment of diseases due to infection by bacteria and certain protozoans, including, for example, malaria, Babesosis, Toxoplasmosis, diarrheal disease, respiratory disease, sexually transmitted bacterial infections, and some bioterror bacteria, including, for example, plague, tularemia and post-inhalation anthrax. Also disclosed herein are new salts and polymorphs of cethromycin for the treatment of inflammatory diseases, including, for example, pelvic inflammatory disease, and peptic ulcer disease.
    Type: Application
    Filed: July 15, 2025
    Publication date: November 6, 2025
    Inventors: David SULLIVAN, Amanda HILL, Kate WITTERING, Amy TAPPER, Nikola KALUDOV
  • Publication number: 20250281914
    Abstract: A catalyst and methods for making the catalyst are provided. An exemplary catalyst includes the formula: MoaVbTec-TadOx. In this formula, a is 1.0, b is about 0.01 to about 0.3, c is about 0.01 to about 0.09, d is about 0.01 to about 0.05, and x is the number of oxygen atoms necessary to render the catalyst electronically neutral.
    Type: Application
    Filed: April 20, 2023
    Publication date: September 11, 2025
    Inventors: David SULLIVAN, Vasily SIMANZHENKOV
  • Publication number: 20250281913
    Abstract: Methods are provided provides a method for preparing a catalyst for oxidative dehydrogenation. An exemplary method includes forming a slurry including oxides of molybdenum, tantalum oxide, and tellurium and adding VOSO4 to the slurry. Citric acid, oxalic acid, and ethylene glycol are added to the slurry. The slurry is transferred to an autoclave, and the autoclave is heated to form a catalyst precursor. The catalyst precursor formed in the autoclave is isolated and calcined to form the catalyst.
    Type: Application
    Filed: April 20, 2023
    Publication date: September 11, 2025
    Applicant: NOVA CHEMICALS (INTERNATIONAL) S.A.
    Inventors: David SULLIVAN, Vasily SIMANZHENKOV
  • Patent number: 12391632
    Abstract: A catalyst, useful for oxidative dehydrogenation of ethane, comprising molybdenum, vanadium, tellurium, tantalum, and oxygen, prepared using a stage hydrothermal synthesis procedure, is provided. The catalyst comprises from 30 to 50 wt. % amorphous content and may be combined with a support/carrier material to form a catalyst material. The described catalysts and catalyst materials demonstrate high selectivity for ethylene at higher temperatures, show little to no decline in conversion and selectivity over time, and do not appear to be sensitive to low residual oxygen concentrations.
    Type: Grant
    Filed: February 3, 2022
    Date of Patent: August 19, 2025
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: David Sullivan, Vasily Simanzhenkov, Yoonhee Kim, Marie Barnes, Bolaji Olayiwola
  • Patent number: 12391720
    Abstract: Disclosed herein are new salts and polymorphs of cethromycin for the treatment of diseases due to infection by bacteria and certain protozoans, including, for example, malaria, Babesosis, Toxoplasmosis, diarrheal disease, respiratory disease, sexually transmitted bacterial infections, and some bioterror bacteria, including, for example, plague, tularemia and post-inhalation anthrax. Also disclosed herein are new salts and polymorphs of cethromycin for the treatment of inflammatory diseases, including, for example, pelvic inflammatory disease, and peptic ulcer disease.
    Type: Grant
    Filed: May 24, 2023
    Date of Patent: August 19, 2025
    Assignee: AliquantumRx, Inc.
    Inventors: David Sullivan, Amanda Hill, Kate Wittering, Amy Tapper, Nikola Kaludov
  • Publication number: 20250249439
    Abstract: Shaped catalyst compositions and methods for making and using the shaped catalyst compositions are provided. In an exemplary a catalyst active phase includes a MoVTeTaOx catalyst. The composition also includes a support phase, wherein the support phase includes fumed silica, and wherein the catalyst active phase and support phase form a heterogeneous mixture.
    Type: Application
    Filed: March 8, 2023
    Publication date: August 7, 2025
    Inventors: David SULLIVAN, Vasily SIMANZHENKOV, Hanna DRAG
  • Publication number: 20250222446
    Abstract: Shaped catalyst compositions and methods for making and using the shaped catalyst compositions are provided. In an exemplary a catalyst active phase includes a MoVTeNbOx catalyst. The composition also includes a support phase, wherein the support phase includes fumed silica, and wherein the catalyst active phase and support phase form a heterogeneous mixture.
    Type: Application
    Filed: March 8, 2023
    Publication date: July 10, 2025
    Inventors: David SULLIVAN, Vasily SIMANZHENKOV, Hanna DRAG
  • Publication number: 20250065308
    Abstract: This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, beryllium, oxygen, and optionally aluminum.
    Type: Application
    Filed: November 4, 2024
    Publication date: February 27, 2025
    Inventors: Vasily SIMANZHENKOV, Yoonhee KIM, David SULLIVAN, Marie BARNES, Elena SEBASTIAO
  • Patent number: 12208373
    Abstract: Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.
    Type: Grant
    Filed: April 19, 2023
    Date of Patent: January 28, 2025
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Sullivan, Yipei Styles, Yoonhee Kim, Hanna Drag, Marie Barnes
  • Patent number: 12168219
    Abstract: This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, beryllium, oxygen, and optionally aluminum.
    Type: Grant
    Filed: August 28, 2020
    Date of Patent: December 17, 2024
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Yoonhee Kim, David Sullivan, Marie Barnes, Elena Sebastiao
  • Publication number: 20240278219
    Abstract: This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and iron; oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and aluminum; and oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, iron, and aluminum.
    Type: Application
    Filed: March 27, 2024
    Publication date: August 22, 2024
    Inventors: Vasily Simanzhenkov, Yoonhee KIM, Xiaoliang GAO, David SULLIVAN, Marie BARNES, Elena Sebastiao
  • Publication number: 20240253021
    Abstract: This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and iron; oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and aluminum; and oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, iron, and aluminum.
    Type: Application
    Filed: March 27, 2024
    Publication date: August 1, 2024
    Inventors: Vasily Simanzhenkov, Yoonhee KIM, Xiaoliang GAO, David SULLIVAN, Marie BARNES, Elena Sebastiao
  • Patent number: 11998895
    Abstract: Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20AlcOd wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt. % amorphous as measured by XRD. The disclosure also provides methods of making the compositions.
    Type: Grant
    Filed: July 8, 2022
    Date of Patent: June 4, 2024
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, Marie Barnes, David Sullivan, Yoonhee Kim
  • Patent number: 11998897
    Abstract: This document relates to oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and iron; oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, and aluminum; and oxidative dehydrogenation catalyst materials that include molybdenum, vanadium, oxygen, iron, and aluminum.
    Type: Grant
    Filed: September 2, 2020
    Date of Patent: June 4, 2024
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Yoonhee Kim, Xiaoliang Gao, David Sullivan, Marie Barnes, Elena Sebastiao
  • Publication number: 20240149253
    Abstract: Catalysts and Methods for large-scale production of the catalysts are provided. An exemplary catalyst composition includes molybdenum, vanadium, tellurium, niobium, oxygen. In the catalyst composition, the molar ratio of molybdenum to vanadium is from 1:0.05 to 1:0.60, the molar ratio of molybdenum to tellurium is from 1:0.01 to 1:0.30, and the molar ratio of molybdenum to niobium is from 1:0.01 to 1:0.40. Oxygen is present at least in an amount to satisfy the valency of any present metal oxides, and composition includes less than 1.0 wt. % of sulfur.
    Type: Application
    Filed: February 10, 2022
    Publication date: May 9, 2024
    Inventors: Xiaoliang GAO, Vasily SIMANZHENKOV, David SULLIVAN, Perry DE WIT, Hanna DRAG, Yoonhee KIM
  • Publication number: 20240034701
    Abstract: A catalyst, useful for oxidative dehydrogenation of ethane, comprising molybdenum, vanadium, tellurium, tantalum, and oxygen, prepared using a stage hydrothermal synthesis procedure, is provided. The catalyst comprises from 30 to 50 wt. % amorphous content and may be combined with a support/carrier material to form a catalyst material. The described catalysts and catalyst materials demonstrate high selectivity for ethylene at higher temperatures, show little to no decline in conversion and selectivity over time, and do not appear to be sensitive to low residual oxygen concentrations.
    Type: Application
    Filed: February 3, 2022
    Publication date: February 1, 2024
    Inventors: David SULLIVAN, Vasily SIMANZHENKOV, Yoonhee KIM, Marie BARNES, Bolaji OLAYIWOLA
  • Publication number: 20230312633
    Abstract: Disclosed herein are new salts and polymorphs of cethromycin for the treatment of diseases due to infection by bacteria and certain protozoans, including, for example, malaria, Babesosis, Toxoplasmosis, diarrheal disease, respiratory disease, sexually transmitted bacterial infections, and some bioterror bacteria, including, for example, plague, tularemia and post-inhalation anthrax. Also disclosed herein are new salts and polymorphs of cethromycin for the treatment of inflammatory diseases, including, for example, pelvic inflammatory disease, and peptic ulcer disease.
    Type: Application
    Filed: May 24, 2023
    Publication date: October 5, 2023
    Inventors: David SULLIVAN, Amanda HILL, Kate WITTERING, Amy TAPPER, Nikola KALUDOV
  • Patent number: 11772073
    Abstract: Oxidative dehydrogenation catalysts for converting lower paraffins to alkenes such as ethane to ethylene when prepared as an agglomeration, for example extruded with supports comprising slurries of Nb2O5.
    Type: Grant
    Filed: February 3, 2021
    Date of Patent: October 3, 2023
    Assignee: NOVA Chemicals (International) S.A.
    Inventors: Xiaoliang Gao, Marie Annette Barnes, Yoonhee Kim, Vasily Simanzhenkov, David Sullivan, Renee Laurel Anseeuw, Yipei Styles
  • Publication number: 20230278013
    Abstract: Provided in this disclosure are catalyst compositions. The catalyst compositions include an oxidative dehydrogenation catalyst that includes a mixed metal oxide having the empirical formula: Mo1.0V0.12-0.49Te0.05-0.17Nb0.10-0.20AlcOd wherein c is from 0 to 2.0 and d is a number to satisfy the valence of the oxide. The compositions are at least 40 wt. % amorphous as measured by XRD. The disclosure also provides methods of making the compositions.
    Type: Application
    Filed: July 8, 2022
    Publication date: September 7, 2023
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, Marie Barnes, David Sullivan, Yoonhee Kim
  • Publication number: 20230271162
    Abstract: Mixed metal oxide catalysts having an amorphous content of not less than 40 wt. % are prepared by calcining the catalyst precursor fully or partially enclosed by a porous material having a melting temperature greater than 600° C. in an inert container including heating the catalyst precursor at a rate from 0.5 to 10° C. per minute from room temperature to a temperature from 370° C. to 540° C. under a stream of pre heated gas chosen from steam and inert gas and mixtures thereof at a pressure of greater than or equal to 1 psig having a temperature from 300° C. to 540° C. and holding the catalyst precursor at that temperature for at least 2 hours and cooling the catalyst precursor to room temperature.
    Type: Application
    Filed: April 19, 2023
    Publication date: August 31, 2023
    Applicant: NOVA Chemicals (International) S.A.
    Inventors: Vasily Simanzhenkov, Xiaoliang Gao, David Sullivan, Yipei Styles, Yoonhee Kim, Hanna Drag, Marie Barnes