Patents by Inventor Peter Markland

Peter Markland 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: 10463619
    Abstract: Compositions and methods of making and using of microparticle compositions that provide faster flow or improved injectability through smaller or small-diameter needles have been developed. Notably, the microparticle compositions can be successfully delivered or administered through smaller-diameter needles than other microparticle compositions prepared from biocompatible or biodegradable polymers including, for example, poly(lactide), poly(lactide-co-glycolide), polycaprolactone, or poly-3-hydroxybutyrate. The microparticle compositions can exhibit a higher solids loading for a given needle size and/or faster flow through needles than other microparticle compositions. Further, blending or mixing the polymer of the microparticle composition with other polymer formulations can enhance the injectability of the resulting formulation.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: November 5, 2019
    Assignees: TEPHA, INC., EVONIK CORPORATION
    Inventors: Peter Markland, Gary Anthony Winchester, Thomas Robert Tice, David P. Martin
  • Patent number: 9486416
    Abstract: The present invention relates to emulsion and double-emulsion based processes for preparing microparticles. The invention also relates to workhead assemblies for in-line flow-through mixing devices that can be used for mixing two or more fluids. The workhead assemblies can be used with the processes for preparing microparticles.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: November 8, 2016
    Assignee: Evonik Corporation
    Inventors: Gary Winchester, Peter Markland
  • Patent number: 9399018
    Abstract: Described herein are implant devices, kits comprising the implant devices, and methods of making and using the devices and kits. In one aspect, a plurality of implant devices comprises at least two implants that exhibit a different release profile of a bioactive agent. In another aspect, an implant device comprises one or more adjoined polymer bodies, wherein at least two of the polymer bodies provide a different release profile of a bioactive agent. In another aspect, a kit comprises one or more disclosed implant devices. In another aspect, methods of delivering a bioactive agent to a subject comprise administering to the subject one or more disclosed implant devices.
    Type: Grant
    Filed: September 16, 2010
    Date of Patent: July 26, 2016
    Assignee: Evonik Corporation
    Inventors: Bruce W. Hudson, Peter Markland
  • Publication number: 20160136096
    Abstract: Compositions and methods of making and using of microparticle compositions that provide faster flow or improved injectability through smaller or small-diameter needles have been developed. Notably, the microparticle compositions can be successfully delivered or administered through smaller-diameter needles than other microparticle compositions prepared from biocompatible or biodegradable polymers including, for example, poly(lactide), poly(lactide-co-glycolide), polycaprolactone, or poly-3-hydroxybutyrate. The microparticle compositions can exhibit a higher solids loading for a given needle size and/or faster flow through needles than other microparticle compositions. Further, blending or mixing the polymer of the microparticle composition with other polymer formulations can enhance the injectability of the resulting formulation.
    Type: Application
    Filed: December 3, 2015
    Publication date: May 19, 2016
    Inventors: Peter Markland, Gary Anthony Winchester, Thomas Robert Tice, David P. Martin
  • Publication number: 20160082110
    Abstract: Described herein are terpolymer compositions, kits comprising the compositions, implant devices comprising the compositions, and methods of making and using same, including point of use methods.
    Type: Application
    Filed: December 1, 2015
    Publication date: March 24, 2016
    Inventors: Kevin W. Burton, Howard Bowman, Danielle Biggs, Peter Markland
  • Patent number: 9216152
    Abstract: Compositions and methods of making and using of microparticle compositions that provide faster flow or improved injectability through smaller or small-diameter needles have been developed. Notably, the microparticle compositions can be successfully delivered or administered through smaller-diameter needles than other microparticle compositions prepared from biocompatible or biodegradable polymers including, for example, poly(lactide), poly(lactide-co-glycolide), polycaprolactone, or poly-3-hydroxybutyrate. The microparticle compositions can exhibit a higher solids loading for a given needle size and/or faster flow through needles than other microparticle compositions. Further, blending or mixing the polymer of the microparticle composition with other polymer formulations can enhance the injectability of the resulting formulation.
    Type: Grant
    Filed: June 29, 2009
    Date of Patent: December 22, 2015
    Assignees: Tepha, Inc., Evonik Corporation
    Inventors: Peter Markland, Gary Anthony Winchester, Thomas Robert Tice, David P. Martin
  • Patent number: 9090737
    Abstract: Disclosed are terpolymer compositions of lactide, glycolide, and caprolactone and methods of making such polymers with an initiator. Methods of using the terpolymers as a drug delivery platform are also disclosed.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: July 28, 2015
    Assignee: SurModics, Inc.
    Inventors: Peter Markland, Howard Bowman
  • Patent number: 8758828
    Abstract: Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.
    Type: Grant
    Filed: February 15, 2013
    Date of Patent: June 24, 2014
    Assignee: Evonik Corporation
    Inventors: Peter Markland, Xi Zhang
  • Publication number: 20130171261
    Abstract: Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.
    Type: Application
    Filed: February 15, 2013
    Publication date: July 4, 2013
    Applicant: Evonik Degussa Corporation
    Inventors: Peter Markland, Xi Zhang
  • Patent number: 8399686
    Abstract: Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: March 19, 2013
    Assignee: Evonik Degussa Corporation
    Inventors: Peter Markland, Xi Zhang
  • Publication number: 20120004324
    Abstract: Disclosed herein are process for preparing cyclic esters comprising unsaturated functional groups. Also disclosed are copolymers prepared from the cyclic esters. The copolymers can be used to form microparticles, polymer micelles, etc., which are useful in drug delivery applications.
    Type: Application
    Filed: December 15, 2010
    Publication date: January 5, 2012
    Inventors: Peter Markland, Xi Zhang
  • Publication number: 20120004323
    Abstract: Disclosed herein are processes for preparing implants that are particularly useful for thermally labile bioactive agents but can also generally be used with any bioactive agent. The disclosed processes avoid the use of heat during processing and therefore avoid heat induced degradation of the bioactive agent. Also disclosed are implants prepared by the disclosed methods.
    Type: Application
    Filed: June 30, 2011
    Publication date: January 5, 2012
    Inventors: Peter Markland, Thomas R. Tice
  • Publication number: 20110236496
    Abstract: Disclosed herein are surface-active biodegradable block copolymers comprising one or more hydrophobic blocks and one or more hydrophilic blocks. The surface-active polymers are used as stabilizers in emulsions which are used in microencapsulation processes. Also disclosed are microparticles prepared from the emulsions.
    Type: Application
    Filed: March 25, 2011
    Publication date: September 29, 2011
    Inventor: Peter Markland
  • Publication number: 20110204533
    Abstract: The present invention relates to emulsion and double-emulsion based processes for preparing microparticles. The invention also relates to workhead assemblies for in-line flow-through mixing devices that can be used for mixing two or more fluids. The workhead assemblies can be used with the processes for preparing microparticles.
    Type: Application
    Filed: December 15, 2010
    Publication date: August 25, 2011
    Inventors: Gary Winchester, Peter Markland
  • Publication number: 20110142906
    Abstract: Described herein are implant devices, kits comprising the implant devices, and methods of making and using the devices and kits. In one aspect, a plurality implant devices comprises at least two implants that exhibit a different release profile of a bioactive agent. In another aspect, an implant device comprises one or more adjoined polymer bodies, wherein at least two of the polymer bodies provide a different release profile of a bioactive agent. In another aspect, a kit comprises one or more disclosed implant devices. In another aspect, methods of delivering a bioactive agent to a subject comprise administering to the subject one or more disclosed implant devices.
    Type: Application
    Filed: September 16, 2010
    Publication date: June 16, 2011
    Applicant: SurModics Pharmaceuticals, Inc.
    Inventors: Bruce W. Hudson, Peter Markland
  • Publication number: 20110129422
    Abstract: Disclosed are terpolymer compositions of lactide, glycolide, and caprolactone and methods of making such polymers with an initiator. Methods of using the terpolymers as a drug delivery platform are also disclosed.
    Type: Application
    Filed: February 8, 2011
    Publication date: June 2, 2011
    Inventors: Peter Markland, Howard Bowman
  • Publication number: 20100189800
    Abstract: Described herein are improved methods for microparticle encapsulation. In one aspect, the disclosed methods comprise a substantially continuous double emulsion process. In a further aspects, microparticles comprising a bioactive agent therein are made by the disclosed methods.
    Type: Application
    Filed: January 22, 2010
    Publication date: July 29, 2010
    Inventor: Peter Markland
  • Publication number: 20100168807
    Abstract: Described herein are terpolymer compositions, kits comprising the compositions, implant devices comprising the compositions, and methods of making and using same, including point of use methods.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 1, 2010
    Inventors: Kevin W. Burton, Howard Bowman, Danielle Biggs, Peter Markland
  • Publication number: 20100158978
    Abstract: Described herein are spray coating compositions, implant devices comprising the compositions, and methods of making and using same, including point of use methods.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 24, 2010
    Inventor: Peter Markland
  • Publication number: 20100003300
    Abstract: Compositions and methods of making and using of microparticle compositions that provide faster flow or improved injectability through smaller or small-diameter needles have been developed. Notably, the microparticle compositions can be successfully delivered or administered through smaller-diameter needles than other microparticle compositions prepared from biocompatible or biodegradable polymers including, for example, poly(lactide), poly(lactide-co-glycolide), polycaprolactone, or poly-3-hydroxybutyrate. The microparticle compositions can exhibit a higher solids loading for a given needle size and/or faster flow through needles than other microparticle compositions. Further, blending or mixing the polymer of the microparticle composition with other polymer formulations can enhance the injectability of the resulting formulation.
    Type: Application
    Filed: June 29, 2009
    Publication date: January 7, 2010
    Inventors: Peter Markland, Gary Anthony Winchester, Thomas Robert Tice, David P. Martin