Patents by Inventor Justin M. Keen

Justin M. Keen 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: 20240091201
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Application
    Filed: November 24, 2023
    Publication date: March 21, 2024
    Applicant: AustinPx, LLC
    Inventors: Dave A. MILLER, Justin M. KEEN, Sandra U. KUCERA
  • Patent number: 11878005
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Grant
    Filed: February 6, 2019
    Date of Patent: January 23, 2024
    Assignee: AustinPx, LLC
    Inventors: Dave A. Miller, Justin M. Keen, Sandra U. Kucera
  • Publication number: 20190167643
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Application
    Filed: February 6, 2019
    Publication date: June 6, 2019
    Applicant: DISPERSOL TECHNOLOGIES, LLC
    Inventors: Dave A. MILLER, Justin M. KEEN, Sandra U. KUCERA
  • Patent number: 10265301
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Grant
    Filed: June 17, 2016
    Date of Patent: April 23, 2019
    Assignee: DISPERSOL TECHNOLOGIES, LLC
    Inventors: Dave A. Miller, Justin M. Keen, Sandra U. Kucera
  • Patent number: 10258608
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Grant
    Filed: June 28, 2017
    Date of Patent: April 16, 2019
    Assignee: DISPERSOL TECHNOLOGIES, LLC
    Inventors: Dave A. Miller, Justin M. Keen, Sandra U. Kucera
  • Patent number: 9867786
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Grant
    Filed: May 19, 2016
    Date of Patent: January 16, 2018
    Assignee: AUXILIUM US HOLDINGS, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Publication number: 20170296514
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Application
    Filed: June 28, 2017
    Publication date: October 19, 2017
    Applicant: DISPERSOL TECHNOLOGIES, LLC
    Inventors: Dave A. MILLER, Justin M. KEEN, Sandra U. KUCERA
  • Publication number: 20170027911
    Abstract: The disclosure provides for improved pharmaceutical compositions containing deferasirox (DFX) and methods of manufacturing the same. In particular, the compositions are prepared using thermokinetic compounding and provide improved properties as well as more efficient methods of manufacture.
    Type: Application
    Filed: June 17, 2016
    Publication date: February 2, 2017
    Applicant: Dispersol Technologies, LLC
    Inventors: Dave A. MILLER, Justin M. KEEN, Sandra U. KUCERA
  • Publication number: 20160256405
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Application
    Filed: May 19, 2016
    Publication date: September 8, 2016
    Applicant: AUXILIUM US HOLDINGS, LLC.
    Inventors: Michael M. CROWLEY, Justin M. KEEN, John J. KOLENG, Feng ZHANG
  • Patent number: 9364445
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Grant
    Filed: October 17, 2014
    Date of Patent: June 14, 2016
    Assignee: Auxilium US Holdings, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Publication number: 20150057259
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Application
    Filed: October 17, 2014
    Publication date: February 26, 2015
    Applicant: Auxilium US Holdings, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Patent number: 8883187
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: November 11, 2014
    Assignee: Auxilium US Holdings, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Publication number: 20130259920
    Abstract: A process for the preparation of a bioadhesive laminate comprising a hot-melt extruded reservoir layer and a hot-melt extruded backing layer is provided. The reservoir layer comprises a thermoplastic bioadhesive composition containing an active agent. An active agent-containing thermoplastic bioadhesive hydrophilic composition is hot-melt coextruded with a hydrophobic composition to form at least a bi-layered laminate. The hydrophilic composition and the hydrophobic composition have at least one polymer in common. In addition, the melt flow index of the hydrophobic composition is within 50% of the melt flow index of the hydrophilic composition. As a result, the laminate has a uniform transverse cross-section and/or a uniform longitudinal cross-section throughout a major of the length of the laminate. Moreover, when the laminate is divided into unit doses of approximately the same size, they have a high degree of content uniformity with respect to the active agent(s) present therein.
    Type: Application
    Filed: May 28, 2013
    Publication date: October 3, 2013
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Patent number: 8465759
    Abstract: A process for the preparation of a bioadhesive laminate comprising a hot-melt extruded reservoir layer and a hot-melt extruded backing layer is provided. The reservoir layer comprises a thermoplastic bioadhesive composition containing an active agent. An active agent-containing thermoplastic bioadhesive hydrophilic composition is hot-melt coextruded with a hydrophobic composition to form at least a bi-layered laminate. The hydrophilic composition and the hydrophobic composition have at least one polymer in common. In addition, the melt flow index of the hydrophobic composition is within 50% of the melt flow index of the hydrophilic composition. As a result, the laminate has a uniform transverse cross-section and/or a uniform longitudinal cross-section throughout a major of the length of the laminate. Moreover, when the laminate is divided into unit doses of approximately the same size, they have a high degree of content uniformity with respect to the active agent(s) present therein.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: June 18, 2013
    Assignee: Auxilium US Holdings, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Publication number: 20120214777
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Application
    Filed: May 3, 2012
    Publication date: August 23, 2012
    Applicant: Auxilium U.S. Holdings, LLC
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Patent number: 8173152
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: May 8, 2012
    Assignee: Auxilium US Holdings, LLC
    Inventors: Michael W. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Publication number: 20090264385
    Abstract: A stabilized bioadhesive composition containing an alkaline labile drug and a method for its preparation are provided. In one aspect, the composition is a hot-melt extruded (HME) composition comprising a preformed excipient mixture comprising an acidic component and an alkaline thermoplastic matrix-forming material, e.g. polymer. The excipient mixture is formed before blending with an alkaline labile drug. The blend is then hot-melt extruded to form the HME composition. By so doing, the acidic component is able to neutralize or render moderately acidic the excipient mixture. This particular process has been shown to substantially reduce the degradation of an alkaline labile drug during hot-melt extrusion. The excipient mixture softens or melts during hot-melt extrusion. It can dissolve or not dissolve drug-containing particles during extrusion.
    Type: Application
    Filed: March 22, 2007
    Publication date: October 22, 2009
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang
  • Publication number: 20090136555
    Abstract: A process for the preparation of a bioadhesive laminate comprising a hot-melt extruded reservoir layer and a hot-melt extruded backing layer is provided. The reservoir layer comprises a thermoplastic bioadhesive composition containing an active agent. An active agent-containing thermoplastic bioadhesive hydrophilic composition is hot-melt coextruded with a hydrophobic composition to form at least a bi-layered laminate. The hydrophilic composition and the hydrophobic composition have at least one polymer in common. In addition, the melt flow index of the hydrophobic composition is within 50% of the melt flow index of the hydrophilic composition. As a result, the laminate has a uniform transverse cross-section and/or a uniform longitudinal cross-section throughout a major of the length of the laminate. Moreover, when the laminate is divided into unit doses of approximately the same size, they have a high degree of content uniformity with respect to the active agent(s) present therein.
    Type: Application
    Filed: March 22, 2007
    Publication date: May 28, 2009
    Inventors: Michael M. Crowley, Justin M. Keen, John J. Koleng, Feng Zhang