Patents by Inventor Robert W. Hergenrother

Robert W. Hergenrother 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: 11246963
    Abstract: Disclosed herein is a delivery composition for administering a hydrophobic active agent. In one embodiment, a delivery composition for local administration of a hydrophobic active agent to a tissue or organ of a patient is disclosed. In one embodiment, the delivery composition includes a cationic delivery agent, a therapeutically effective amount of a hydrophobic active agent and a pharmaceutically acceptable aqueous carrier. In one embodiment, the cationic delivery agent includes polyethyleneimine (PEI). In an embodiment, the invention includes a drug delivery device including a substrate; and coated therapeutic agent particles disposed on the substrate, the coated therapeutic agent particles comprising a particulate hydrophobic therapeutic agent; and a vinyl amine polymer. Methods of making the delivery composition, as well as kits and methods of use are also included herein.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: February 15, 2022
    Assignee: Surmodics, Inc.
    Inventors: Joram Slager, Dale G. Swan, Darin DuMez, Joseph Ventura, Shannon Wadman, Joseph Schmidt McGonigle, Robert W. Hergenrother
  • Patent number: 11174447
    Abstract: Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.
    Type: Grant
    Filed: July 8, 2019
    Date of Patent: November 16, 2021
    Assignee: Surmodics, Inc.
    Inventors: David E. Babcock, Joram Slager, Robert W. Hergenrother
  • Publication number: 20210178129
    Abstract: The present invention is an implantable medical device comprising (i) a base coat layer having an inner and outer surface, the inner surface of the base coat layer contacting the implantable medical device; (ii) a top-coat layer of a hydrophilic polymer chemically crosslinked and covalently bonded to the outer surface of the base coat layer, the hydrophilic polymer comprising an anionic polyelectrolyte; and (iii) an amount of a hydrophilic cationic drug agent added to the top-coat layer sufficient to provide an effective dosage of the drug agent for delivery to a patient, whereby the hydrophilic cationic drug agent is initially adsorbed into the anionic polyelectrolyte of the top-coat layer and the hydrophilic cationic drug agent having a release rate after the medical device is implanted within a patient's body.
    Type: Application
    Filed: December 10, 2020
    Publication date: June 17, 2021
    Inventors: William James Work, Raymond Joseph Gould, Dhruv Patel, Robert W Hergenrother
  • Patent number: 10800931
    Abstract: The invention includes conductive polymeric coatings, medical device, coating solutions and methods of making the same. A coating solution for forming a conductive polymer layer can include a conductive monomer, at least one photoreactive component comprising an anionic photoreactive cross-linking agent or an anionic photoreactive hydrophilic polymer, and a solvent. A medical device can include an electrode and an electrically conductive coating disposed over the electrode. The electrically conductive coating can include a reaction product of the conductive monomer and the at least one photoreactive component. Other aspects are included herein.
    Type: Grant
    Filed: August 25, 2014
    Date of Patent: October 13, 2020
    Assignee: Heraeus Medical Components LLC
    Inventors: Jeffrey L. Hendricks, Sarah M. Richardson-Burns, Kyle Mallires, Sarah A. Spanninga, Nathan A. Lockwood, Robert W. Hergenrother, Bruce M. Jelle
  • Publication number: 20190330551
    Abstract: Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.
    Type: Application
    Filed: July 8, 2019
    Publication date: October 31, 2019
    Inventors: David E. Babcock, Joram Slager, Robert W. Hergenrother
  • Patent number: 10342898
    Abstract: Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: July 9, 2019
    Assignee: Surmodics, Inc.
    Inventors: David E. Babcock, Joram Slager, Robert W. Hergenrother
  • Patent number: 10080688
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Grant
    Filed: August 6, 2015
    Date of Patent: September 25, 2018
    Assignee: SURMODICS, INC.
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan A. Lockwood, Robert W. Hergenrother, Charles Olson
  • Patent number: 9999675
    Abstract: Disclosed herein is a delivery composition for administering a hydrophobic active agent. In one embodiment, a delivery composition for local administration of a hydrophobic active agent to a tissue or organ of a patient is disclosed. In one embodiment, the delivery composition includes a cationic delivery agent, a therapeutically effective amount of a hydrophobic active agent and a pharmaceutically acceptable aqueous carrier. In one embodiment, the cationic delivery agent includes polyethyleneimine (PEI). In a more specific embodiment, the cationic delivery agent includes branched PEI. Methods of making the delivery composition, as well as kits and methods of use are also disclosed.
    Type: Grant
    Filed: November 21, 2016
    Date of Patent: June 19, 2018
    Assignee: Surmodics, Inc.
    Inventors: Joseph Ventura, Shannon Wadman, Joram Slager, Joseph Schmidt McGonigle, Robert W. Hergenrother
  • Publication number: 20170182224
    Abstract: Embodiments herein include coated medical devices and coatings with salt groups. In an embodiment, a coated medical device is included, the coated medical device including a substrate and a polymeric layer disposed over the substrate. The polymeric layer includes a polymer and has an exterior surface. The coated medical device further includes a plurality of salt groups bonded to the polymer of the polymeric layer and disposed on the exterior surface of the polymeric layer. The salt groups can be the reaction product of a reactive group with an acid or base. In an embodiment, a method of making a medical device is included. Other embodiments are also included herein.
    Type: Application
    Filed: December 12, 2016
    Publication date: June 29, 2017
    Inventors: David E. Babcock, Joram Slager, Robert W. Hergenrother
  • Publication number: 20170072057
    Abstract: Disclosed herein is a delivery composition for administering a hydrophobic active agent. In one embodiment, a delivery composition for local administration of a hydrophobic active agent to a tissue or organ of a patient is disclosed. In one embodiment, the delivery composition includes a cationic delivery agent, a therapeutically effective amount of a hydrophobic active agent and a pharmaceutically acceptable aqueous carrier. In one embodiment, the cationic delivery agent includes polyethyleneimine (PEI). In a more specific embodiment, the cationic delivery agent includes branched PEI. Methods of making the delivery composition, as well as kits and methods of use are also disclosed.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 16, 2017
    Inventors: Joseph Ventura, Shannon Wadman, Joram Slager, Joseph Schmidt McGonigle, Robert W. Hergenrother
  • Patent number: 9555119
    Abstract: Disclosed herein is a delivery composition for administering a hydrophobic active agent. In one embodiment, a delivery composition for local administration of a hydrophobic active agent to a tissue or organ of a patient is disclosed. In one embodiment, the delivery composition includes a cationic delivery agent, a therapeutically effective amount of a hydrophobic active agent and a pharmaceutically acceptable aqueous carrier. In one embodiment, the cationic delivery agent includes polyethyleneimine (PEI). In a more specific embodiment, the cationic delivery agent includes branched PEI. Methods of making the delivery composition, as well as kits and methods of use are also disclosed.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: January 31, 2017
    Assignee: Surmodics, Inc.
    Inventors: Joseph Ventura, Shannon Wadman, Joram Slager, Joseph Schmidt McGonigle, Robert W. Hergenrother
  • Publication number: 20160208114
    Abstract: The invention includes conductive polymeric coatings, medical device, coating solutions and methods of making the same. A coating solution for forming a conductive polymer layer can include a conductive monomer, at least one photoreactive component comprising an anionic photoreactive cross-linking agent or an anionic photoreactive hydrophilic polymer, and a solvent. A medical device can include an electrode and an electrically conductive coating disposed over the electrode. The electrically conductive coating can include a reaction product of the conductive monomer and the at least one photoreactive component. Other aspects are included herein.
    Type: Application
    Filed: August 25, 2014
    Publication date: July 21, 2016
    Inventors: Jeffrey L. Hendricks, Sarah M. Richardson-Burns, Kyle Mallires, Sarah A. Spanninga, Nathan A. Lockwood, Robert W. Hergenrother, Bruce M. Jelle
  • Publication number: 20160022502
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Application
    Filed: August 6, 2015
    Publication date: January 28, 2016
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan A. Lockwood, Robert W. Hergenrother, Charles Olson
  • Patent number: 9155671
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Grant
    Filed: October 16, 2013
    Date of Patent: October 13, 2015
    Assignee: SurModics, Inc.
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan Lockwood, Robert W. Hergenrother, Charles Olson
  • Patent number: 8968782
    Abstract: The present invention relates to relates to combination degradable and non-degradable matrices and related methods. In an embodiment, the invention includes an active agent delivery matrix including a degradable polymer network, a non-degradable polymer network, the non-degradable polymer network interspersed within the degradable polymer network, and an active agent. In an embodiment, the invention includes an active agent elution control matrix including a degradable polymer; and a non-degradable polymer interspersed with the degradable polymer. In an embodiment, the invention includes a method of making an active agent delivery matrix including mixing a degradable polymer with a first solvent to form a degradable polymer solution; mixing a non-degradable polymer with a second solvent to form a non-degradable polymer solution; and simultaneously depositing the degradable polymer solution and the non-degradable polymer solution onto a substrate.
    Type: Grant
    Filed: June 28, 2007
    Date of Patent: March 3, 2015
    Assignee: SurModics, Inc.
    Inventors: Ralph A. Chappa, Robert W. Hergenrother, Paula Bushendorf, Joram Slager
  • Publication number: 20140336571
    Abstract: Disclosed herein is a delivery composition for administering a hydrophobic active agent. In one embodiment, a delivery composition for local administration of a hydrophobic active agent to a tissue or organ of a patient is disclosed. In one embodiment, the delivery composition includes a cationic delivery agent, a therapeutically effective amount of a hydrophobic active agent and a pharmaceutically acceptable aqueous carrier. In one embodiment, the cationic delivery agent includes polyethyleneimine (PEI). In an embodiment, the invention includes a drug delivery device including a substrate; and coated therapeutic agent particles disposed on the substrate, the coated therapeutic agent particles comprising a particulate hydrophobic therapeutic agent; and a vinyl amine polymer. Methods of making the delivery composition, as well as kits and methods of use are also included herein.
    Type: Application
    Filed: May 16, 2014
    Publication date: November 13, 2014
    Applicant: SurModics, Inc.
    Inventors: Joram Slager, Dale G. Swan, Darin DuMez, Joseph Ventura, Shannon Wadman, Joseph Schmidt McGonigle, Robert W. Hergenrother
  • Publication number: 20140200411
    Abstract: Disclosed herein are activatable conductive compositions and methods of making and using activatable conductive compositions. In particular, activatable conductive monomers polymers are described and electrically conductive coatings that include activatable conductive polymers.
    Type: Application
    Filed: January 10, 2014
    Publication date: July 17, 2014
    Applicant: SurModics, Inc.
    Inventors: Bruce M. Jelle, Aleksey V. Kurdyumov, Joseph Schmidt McGonigle, Robert W. Hergenrother, Nathan A. Lockwood, Joseph Ventura, Sean M. Stucke
  • Publication number: 20140180229
    Abstract: Embodiments of the invention include wound packing devices and methods of making and using the same. In an embodiment, the invention includes a wound packing device including a plurality of spacing elements capable of absorbing exudate, wherein the surface of the spacing elements resist colonization by microorganisms. The wound packing device can also include a connector connecting the plurality of spacing elements to one another. Other embodiments are also included herein.
    Type: Application
    Filed: October 16, 2013
    Publication date: June 26, 2014
    Inventors: Shawn Fuller, Bryan A. Claseman, Joram Slager, Jeffrey J. Missling, Gary Maharaj, Gary W. Opperman, Nathan Lockwood, Robert W. Hergenrother, Charles Olson
  • Publication number: 20140142166
    Abstract: Disclosed herein is a delivery composition for administering a hydrophobic active agent. In one embodiment, a delivery composition for local administration of a hydrophobic active agent to a tissue or organ of a patient is disclosed. In one embodiment, the delivery composition includes a cationic delivery agent, a therapeutically effective amount of a hydrophobic active agent and a pharmaceutically acceptable aqueous carrier. In one embodiment, the cationic delivery agent includes polyethyleneimine (PEI). In a more specific embodiment, the cationic delivery agent includes branched PEI. Methods of making the delivery composition, as well as kits and methods of use are also disclosed.
    Type: Application
    Filed: November 5, 2013
    Publication date: May 22, 2014
    Applicant: SurModics, Inc.
    Inventors: Joseph Ventura, Shannon Wadman, Joram Slager, Joseph Schmidt McGonigle, Robert W. Hergenrother
  • Patent number: 8697106
    Abstract: A wound spacer device comprising multiple beads connected by non-absorbable suture material is disclosed. The device can be applied, for example, by a first responder to an injured individual, or can be applied by a trauma treatment facility, such as a Level 2 medical unit. In typical embodiments the device allows for site-specific controlled elution of an antimicrobial agent, such as Tobramycin, including defined elution over a period of time, such as 48 or 72 hours.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 15, 2014
    Assignee: SurModics, Inc.
    Inventors: Tim M. Kloke, Steven J. Keough, Nathan Lockwood, Margaret R. Gardner, Robert W. Hergenrother, Ralph A. Chappa