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: 20170360711
    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: April 4, 2017
    Publication date: December 21, 2017
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Patent number: 9724344
    Abstract: Inhalable compositions are described. The inhalable compositions comprise one or more respirable aggregates, the respirable aggregates comprising one or more poorly water soluble active agents, wherein at least one of the active agents reaches a maximum lung concentration (Cmax) of at least about 0.25 ?g/gram of lung tissue and remains at such concentration for a period of at least one hour after being delivered to the lung. Methods for making such compositions and methods for using such compositions are also disclosed.
    Type: Grant
    Filed: May 15, 2015
    Date of Patent: August 8, 2017
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: James E. Hitt, True L. Rogers, Brian D. Scherzer, Ian B. Gillespie, Paula C. Garcia, Nicholas S. Beck, Christopher J. Tucker, Timothy J. Young, David A. Hayes, Robert O. Williams, III, Keith P. Johnston, Jason T. McConville, Jay I. Peters, Robert Talbert, David S. Burgess
  • Publication number: 20170165238
    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: December 20, 2016
    Publication date: June 15, 2017
    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: 9622974
    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 22, 2015
    Date of Patent: April 18, 2017
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Publication number: 20160058863
    Abstract: Disclosed herein are, inter alia, low viscosity dispersions comprising proteins and viscosity lowering agents; pharmaceutical compositions comprising low viscosity dispersions; and methods of making and using the pharmaceutical compositions and low viscosity dispersions.
    Type: Application
    Filed: September 2, 2015
    Publication date: March 3, 2016
    Inventors: Keith P. Johnston, Thomas Truskett, Barton Dear, Aileen Dinin, Ameya Borwankar, Jessica Hung
  • Publication number: 20160002523
    Abstract: Methods for detection of the presence and distribution of oil in subsurface formation are described herein. The present invention involves injection of an aqueous dispersion of the nanoparticles into the potentially oil containing subsurface formation, followed by a remote detection of the oscillation responses of the nanoparticles in the oil/water interfaces in the reservoir rock by applying magnetic field.
    Type: Application
    Filed: September 14, 2015
    Publication date: January 7, 2016
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Chun Huh, Steven L. Bryant, Thomas E. Milner, Keith P. Johnston
  • Publication number: 20150320740
    Abstract: Inhalable compositions are described. The inhalable compositions comprise one or more respirable aggregates, the respirable aggregates comprising one or more poorly water soluble active agents, wherein at least one of the active agents reaches a maximum lung concentration (Cmax) of at least about 0.25 ?g/gram of lung tissue and remains at such concentration for a period of at least one hour after being delivered to the lung. Methods for making such compositions and methods for using such compositions are also disclosed.
    Type: Application
    Filed: May 15, 2015
    Publication date: November 12, 2015
    Inventors: James E. HITT, True L. ROGERS, Brian D. SCHERZER, Ian B. GILLESPIE, Paula C. GARCIA, Nicholas S. BECK, Christopher J. TUCKER, Timothy J. Young, David A. HAYES, Robert O. WILLIAMS, III, Keith P. JOHNSTON, Jason T. MCCONVILLE, Jay I. PETERS, Robert TALBERT, David S. BURGESS
  • Publication number: 20150268370
    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: Application
    Filed: October 25, 2013
    Publication date: September 24, 2015
    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
  • Patent number: 9133709
    Abstract: Methods for detection of the presence and distribution of oil in subsurface formation are described herein. The present invention involves injection of an aqueous dispersion of the nanoparticles into the potentially oil containing subsurface formation, followed by a remote detection of the oscillation responses of the nanoparticles in the oil/water interfaces in the reservoir rock by applying magnetic field.
    Type: Grant
    Filed: November 17, 2010
    Date of Patent: September 15, 2015
    Assignee: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Chun Huh, Steven L. Bryant, Thomas E. Milner, Keith P. Johnston
  • Publication number: 20150224062
    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: February 12, 2015
    Publication date: August 13, 2015
    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: 20150209289
    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 22, 2015
    Publication date: July 30, 2015
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Patent number: 9061027
    Abstract: Inhalable compositions are described. The inhalable compositions comprise one or more respirable aggregates, the respirable aggregates comprising one or more poorly water soluble active agents, wherein at least one of the active agents reaches a maximum lung concentration (Cmax) of at least about 0.25 ?g/gram of lung tissue and remains at such concentration for a period of at least one hour after being delivered to the lung. Methods for making such compositions and methods for using such compositions are also disclosed.
    Type: Grant
    Filed: August 26, 2005
    Date of Patent: June 23, 2015
    Assignee: Board of Regents, the University of Texas System
    Inventors: James E. Hitt, True L. Rogers, Ian B. Gillespie, Brian D. Scherzer, Paula C. Garcia, Nicholas S. Beck, Christopher J. Tucker, Timothy J. Young, David A. Hayes, Robert O. Williams, III, Keith P. Johnston, Jason T. McConville, Jay I. Peters, Robert Talbert, David Burgess
  • Patent number: 9044391
    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: January 10, 2008
    Date of Patent: June 2, 2015
    Assignee: Board of Regents, the University of Texas System
    Inventors: Robert O. Williams, Keith P. Johnston, Prapasri Sinswat, Jason T. McConville, Robert Talbert, Jay I. Peters, Alan B. Watts, True L. Rogers
  • Patent number: 8973668
    Abstract: Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: March 10, 2015
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor
  • Patent number: 8968786
    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: June 20, 2008
    Date of Patent: March 3, 2015
    Assignee: Board of Regents, The University of Texas System
    Inventors: Keith P. Johnston, Joshua Engstrom, Robert O. Williams, III
  • Publication number: 20150000909
    Abstract: Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
    Type: Application
    Filed: September 5, 2014
    Publication date: January 1, 2015
    Applicant: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor
  • Publication number: 20140378370
    Abstract: The present invent ion also provides a high concentration low viscosity suspension of an pharmaceutically acceptable solvent with one or more sub-micron or micron-sized non-crystalline particles comprising one or more proteins or peptides. Optionally one or more additives in the pharmaceutically acceptable solvent to form a high concentration low viscosity suspension with a concentration of at least 20 mg/ml and a solution viscosity of between 2 and 100 centipoise that is suspendable upon shaking or agitation, wherein upon delivery the one or more sub-micron or micron-sized peptides dissolves and do not form peptide aggregates syringeable through a 21 to 27-gauge needle.
    Type: Application
    Filed: June 5, 2014
    Publication date: December 25, 2014
    Inventors: Keith P. Johnston, Maria Andrea Mazuski, Joshua Engstrom, Miguel Angelo Rodrigues
  • Patent number: 8857527
    Abstract: Embodiments of the present disclosure include compositions for use in enhanced oil recovery, and methods of using the compositions for recovering oil. Compositions of the present disclosure include a nonionic, non-emulsifying surfactant having a CO2-philicity in a range of about 1.5 to about 5.0, carbon dioxide in a liquid phase or supercritical phase, and water, where the nonionic, non-emulsifying surfactant promotes a formation of a stable foam formed of carbon dioxide and water.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: October 14, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Ed G. Rightor, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen
  • Patent number: 8779094
    Abstract: The present invention also provides a high concentration low viscosity suspension of an pharmaceutically acceptable solvent with one or more sub-micron or micron-sized non-crystalline particles comprising one or more proteins or peptides. Optionally one or more additives in the pharmaceutically acceptable solvent to form a high concentration low viscosity suspension with a concentration of at least 20 mg/ml and a solution viscosity of between 2 and 100 centipoise that is suspendable upon shaking or agitation, wherein upon delivery the one or more sub-micron or micron-sized peptides dissolves and do not form peptide aggregates syringeable through a 21 to 27-gauge needle.
    Type: Grant
    Filed: November 10, 2009
    Date of Patent: July 15, 2014
    Assignee: Board of Regents, The University of Texas System
    Inventors: Keith P. Johnston, Maria Andrea Mazuski, Joshua Engstrom, Miguel Angelo Rodrigues
  • Patent number: 8695718
    Abstract: Embodiments of the present disclosure include dispersion compositions having a nonionic surfactant for use in enhanced petroleum recovery, and methods of using the dispersion compositions in petroleum recovery processes. For the various embodiments, the nonionic surfactant of the dispersion composition promotes the formation of a dispersion from carbon dioxide and water.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: April 15, 2014
    Assignee: Dow Global Technologies LLC
    Inventors: Aaron W. Sanders, Keith P. Johnston, Quoc Nguyen, Stephanie Adkins, Xi Chen, Ed G. Rightor