Patents by Inventor Keith P. Johnston

Keith P. Johnston 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: 20240050596
    Abstract: The present invention provides compositions relating to nanoparticles, such as nanocapsules, that selectively target cells associated with diseases or disorders (e.g., cancer cells). The present invention further relates to methods relating to the said nanoparticles for imaging, detection, and treatment of diseases or disorders in a subject. The present invention additionally provides kits that find use in the practice of the methods of the invention.
    Type: Application
    Filed: October 16, 2023
    Publication date: February 15, 2024
    Inventors: Keith P. Johnston, Thomas Truskett, Behzad Changalvaie, Ehsan Moaseri, Konstantin V. Sokolov, Sangheon Han, Mohammed Kawelah
  • Patent number: 11759427
    Abstract: The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm?1 area/volume to, e.g., increase protein stability; and contacting the droplet with a freezing surface that has a temperature differential of at least 30° C. between the droplet and the surface, wherein the surface freezes the droplet into a thin film with a thickness of less than 500 micrometers and a surface area to volume between 25 to 500 cm?1.
    Type: Grant
    Filed: January 21, 2021
    Date of Patent: September 19, 2023
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Publication number: 20230040283
    Abstract: The present invention includes compositions and methods for making and using a rapid dissolving, high potency, substantially amorphous nanostructured aggregate for pulmonary delivery of tacrolimus and a stabilizer matrix comprising, optionally, a polymeric or non-polymeric surfactant, a polymeric or non-polymeric saccharide or both, wherein the aggregate comprises a surface area greater than 5 m2/g as measured by BET analysis and exhibiting supersaturation for at least 0.5 hours when 11-15-times the aqueous crystalline solubility of tacrolimus is added to simulated lung fluid.
    Type: Application
    Filed: June 9, 2022
    Publication date: February 9, 2023
    Inventors: Robert O. WILLIAMS, III, Keith P. JOHNSTON, Prapasri SINSWAT, Jason T. MCCONVILLE, Robert TALBERT, Jay I. PETERS, Alan B. WATTS, True L. ROGERS
  • Publication number: 20220354778
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Application
    Filed: May 17, 2022
    Publication date: November 10, 2022
    Inventors: Keith P. JOHNSTON, Joshua ENGSTROM, Jasmine ROWE, Alan B. WATTS, Robert O. WILLIAMS, III
  • Patent number: 11382899
    Abstract: The present invention includes compositions and methods for making and using a rapid dissolving, high potency, substantially amorphous nanostructured aggregate for pulmonary delivery of tacrolimus and a stabilizer matrix comprising, optionally, a polymeric or non-polymeric surfactant, a polymeric or non-polymeric saccharide or both, wherein the aggregate comprises a surface area greater than 5 m2/g as measured by BET analysis and exhibiting supersaturation for at least 0.5 hours when 11-15-times the aqueous crystalline solubility of tacrolimus is added to simulated lung fluid.
    Type: Grant
    Filed: March 6, 2019
    Date of Patent: July 12, 2022
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Robert O. Williams, III, Keith P. Johnston, Prapasri Sinswat, Jason T. McConville, Robert Talbert, Jay I. Peters, Alan B. Watts, True L. Rogers
  • Patent number: 11364197
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Grant
    Filed: April 3, 2020
    Date of Patent: June 21, 2022
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Jasmine Rowe, Alan B. Watts, Robert O. Williams, III
  • Publication number: 20210275457
    Abstract: The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm?1 area/volume to, e.g., increase protein stability; and contacting the droplet with a freezing surface that has a temperature differential of at least 30° C. between the droplet and the surface, wherein the surface freezes the droplet into a thin film with a thickness of less than 500 micrometers and a surface area to volume between 25 to 500 cm?1.
    Type: Application
    Filed: January 21, 2021
    Publication date: September 9, 2021
    Inventors: Keith P. JOHNSTON, Joshua ENGSTROM, Robert O. WILLIAMS, III
  • Publication number: 20210154335
    Abstract: The present invention provides compositions relating to nanoparticles, such as nanocapsules, that selectively target cells associated with diseases or disorders (e.g., cancer cells). The present invention further relates to methods relating to the said nanoparticles for imaging, detection, and treatment of diseases or disorders in a subject. The present invention additionally provides kits that find use in the practice of the methods of the invention.
    Type: Application
    Filed: November 25, 2020
    Publication date: May 27, 2021
    Inventors: Keith P. Johnston, Thomas Truskett, Behzad Changalvaie, Ehsan Moaseri, Konstantin V. Sokolov, Sangheon Han, Mohammed Kawelah
  • Patent number: 10898437
    Abstract: The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm?1 area/volume to, e.g., increase protein stability; and contacting the droplet with a freezing surface that has a temperature differential of at least 30° C. between the droplet and the surface, wherein the surface freezes the droplet into a thin film with a thickness of less than 500 micrometers and a surface area to volume between 25 to 500 cm?1.
    Type: Grant
    Filed: May 13, 2019
    Date of Patent: January 26, 2021
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Publication number: 20210007971
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Application
    Filed: April 3, 2020
    Publication date: January 14, 2021
    Inventors: Keith P. JOHNSTON, Joshua ENGSTROM, Jasmine ROWE, Alan B. WATTS, Robert O. WILLIAMS, III
  • Patent number: 10660850
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Grant
    Filed: August 29, 2019
    Date of Patent: May 26, 2020
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Jasmine Rowe, Alan B. Watts, Robert O. Williams, III
  • Publication number: 20200069572
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Application
    Filed: August 29, 2019
    Publication date: March 5, 2020
    Inventors: Keith P. JOHNSTON, Joshua ENGSTROM, Jasmine ROWE, Alan B. WATTS, Robert O. WILLIAMS, III
  • Patent number: 10434062
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: October 8, 2019
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Jasmine Rowe, Alan B. Watts, Robert O. Williams, III
  • Publication number: 20190274958
    Abstract: The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm? area/volume to, e.g., increase protein stability; and contacting the droplet with a freezing surface that has a temperature differential of at least 30° C. between the droplet and the surface, wherein the surface freezes the droplet into a thin film with a thickness of less than 500 micrometers and a surface area to volume between 25 to 500 cm?1.
    Type: Application
    Filed: May 13, 2019
    Publication date: September 12, 2019
    Inventors: Keith P. JOHNSTON, Joshua ENGSTROM, Robert O. WILLIAMS, III
  • Publication number: 20190269661
    Abstract: The present invention includes compositions and methods for making and using a rapid dissolving, high potency, substantially amorphous nanostructured aggregate for pulmonary delivery of tacrolimus and a stabilizer matrix comprising, optionally, a polymeric or non-polymeric surfactant, a polymeric or non-polymeric saccharide or both, wherein the aggregate comprises a surface area greater than 5 m2/g as measured by BET analysis and exhibiting supersaturation for at least 0.5 hours when 11-15-times the aqueous crystalline solubility of tacrolimus is added to simulated lung fluid.
    Type: Application
    Filed: March 6, 2019
    Publication date: September 5, 2019
    Inventors: Robert O. WILLIAMS, III, Keith P. JOHNSTON, Prapasri SINSWAT, Jason T. MCCONVILLE, Robert TALBERT, Jay I. PETERS, Alan B. WATTS, True L. ROGERS
  • Patent number: 10285945
    Abstract: The present invention includes compositions and methods for preparing micron-sized or submicron-sized particles by dissolving a water soluble effective ingredient in one or more solvents; spraying or dripping droplets solvent such that the effective ingredient is exposed to a vapor-liquid interface of less than 50, 100, 150, 200, 250, 200, 400 or 500 cm?1 area/volume to, e.g., increase protein stability; and contacting the droplet with a freezing surface that has a temperature differential of at least 30° C. between the droplet and the surface, wherein the surface freezes the droplet into a thin film with a thickness of less than 500 micrometers and a surface area to volume between 25 to 500 cm?1.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: May 14, 2019
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Publication number: 20190117557
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Application
    Filed: August 29, 2018
    Publication date: April 25, 2019
    Inventors: Keith P. JOHNSTON, Joshua ENGSTROM, Jasmine ROWE, Alan B. WATTS, Robert O. WILLIAMS, III
  • Patent number: 10231955
    Abstract: The present invention includes compositions and methods for making and using a rapid dissolving, high potency, substantially amorphous nanostructured aggregate for pulmonary delivery of tacrolimus and a stabilizer matrix comprising, optionally, a polymeric or non-polymeric surfactant, a polymeric or non-polymeric saccharide or both, wherein the aggregate comprises a surface area greater than 5 m2/g as measured by BET analysis and exhibiting supersaturation for at least 0.5 hours when 11-15-times the aqueous crystalline solubility of tacrolimus is added to simulated lung fluid.
    Type: Grant
    Filed: February 12, 2015
    Date of Patent: March 19, 2019
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Robert O. Williams, III, Keith P. Johnston, Prapasri Sinswat, Jason T. McConville, Robert Talbert, Jay I. Peters, Alan B. Watts, True L. Rogers
  • Patent number: 10092512
    Abstract: The present invention includes compositions and methods for treating and delivering medicinal formulations using an inhaler. The composition includes a space filled flocculated suspension having one or more flocculated particles of one or more active agents and a hydrofluoroalkane propellant. A portion of the one or more flocculated particles is templated by the formation of hydrofluoroalkane droplets upon atomization and the templated floc compacts upon the evaporation of the hydrofluoroalkane propellant to form a porous particle for deep lung delivery.
    Type: Grant
    Filed: May 12, 2010
    Date of Patent: October 9, 2018
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Jasmine Rowe, Alan B. Watts, Robert O. Williams, III
  • Patent number: 9983327
    Abstract: A magnetic nanoparticle suitable for imaging a geological structure having one or more magnetic metal or metal oxide nanoparticles with a polymer grafted to the surface to form a magnetic nanoparticle, wherein the magnetic nanoparticle displays a colloidal stability under harsh salinity conditions or in a standard API brine.
    Type: Grant
    Filed: October 25, 2013
    Date of Patent: May 29, 2018
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Christopher W. Bielawski, Hitesh G. Bagaria, Ki Youl Yoon, Bethany M. Neilson, Chun Huh, Steven L. Bryant, Edward Lee Foster, Zheng Xue, Lynn Michelle Foster