Patents by Inventor Joshua Engstrom

Joshua Engstrom 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: 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: 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: 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
  • Publication number: 20110280864
    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: Application
    Filed: November 10, 2009
    Publication date: November 17, 2011
    Applicant: Board of Regents, The University of Texas System
    Inventors: Keith P. Johnston, Maria Andrea Mazuski, Joshua Engstrom, Miguel Angelo Rodrigues
  • Publication number: 20100247506
    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: June 20, 2008
    Publication date: September 30, 2010
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom
  • Publication number: 20100221343
    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 12, 2010
    Publication date: September 2, 2010
    Applicant: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM
    Inventors: Keith P. Johnston, Joshua Engstrom, Jasmine Tam, Alan Watts
  • Publication number: 20090208582
    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: February 13, 2009
    Publication date: August 20, 2009
    Applicant: Board of Regents, The University of Texas System
    Inventors: Keith P. Johnston, Joshua Engstrom, Jasmine Tam