Patents by Inventor Dale G. Swan

Dale G. Swan 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: 10745573
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Grant
    Filed: April 8, 2019
    Date of Patent: August 18, 2020
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Publication number: 20190367748
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Application
    Filed: April 8, 2019
    Publication date: December 5, 2019
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Patent number: 10253193
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Grant
    Filed: May 31, 2018
    Date of Patent: April 9, 2019
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Publication number: 20180273773
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Application
    Filed: May 31, 2018
    Publication date: September 27, 2018
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Patent number: 9994721
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: June 12, 2018
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Patent number: 9629945
    Abstract: The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent compounds can be used in association with polymers, or can be incorporated into polymers, and the polymers used in a coating composition on the article surface. The compounds allow for visual or machine inspection of coating properties such as uniformity of coverage.
    Type: Grant
    Filed: December 12, 2013
    Date of Patent: April 25, 2017
    Assignee: SURMODICS, INC.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan, Nathan A. Lockwood, Bruce M. Jelle
  • Publication number: 20170022375
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Application
    Filed: October 3, 2016
    Publication date: January 26, 2017
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Patent number: 9487663
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Grant
    Filed: November 14, 2014
    Date of Patent: November 8, 2016
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Publication number: 20150166801
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Application
    Filed: November 14, 2014
    Publication date: June 18, 2015
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • Patent number: 8889760
    Abstract: Described herein is a degradable linking agent of formula Photo1-LG-Photo2, wherein Photo1 and Photo2 independently represent at least one photoreactive group and LG represents a linking group comprising one or more silicon atoms or one or more phosphorous atoms. The degradable linking agent includes a covalent linkage between at least one photoreactive group and the linking group, wherein the covalent linkage between at least one photoreactive group and the linking group is interrupted by at least one heteroatom. A method for coating a support surface with the degradable linking agent, coated support surfaces and medical devices are also described.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: November 18, 2014
    Assignee: SurModics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan
  • 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
  • Patent number: 8802121
    Abstract: Silane-functionalized hydrophobic ?(1?4)glucopyranose polymers and polymeric matrices are described. Biodegradable matrices can be formed from hydrophobic ?(1?4)glucopyranose polymers with reactive pendent silyl ether groups. Reaction of the silyl ether groups provides improved matrix formation through bonding to a device surface of a device, polymer-polymer crosslinking, or both. Biodegradable matrices can be used for the preparation of implantable and injectable medical devices, including those that release a bioactive agent.
    Type: Grant
    Filed: June 2, 2010
    Date of Patent: August 12, 2014
    Assignee: Surmodics, Inc.
    Inventors: Aleksey V. Kurdyumov, Nathan A. Lockwood, Joram Slager, Dale G. Swan, Robert Hergenrother
  • Publication number: 20140162083
    Abstract: The invention is directed to latent reactive and polymerizable derivatives of fluorescent stilbene-based compounds. The compounds can be used to provide articles with a fluorescence property, such as medical devices (e.g., catheters). The fluorescent compounds can be used in association with polymers, or can be incorporated into polymers, and the polymers used in a coating composition on the article surface. The compounds allow for visual or machine inspection of coating properties such as uniformity of coverage.
    Type: Application
    Filed: December 12, 2013
    Publication date: June 12, 2014
    Applicant: SurModics, Inc.
    Inventors: Aleksey V. Kurdyumov, Dale G. Swan, Nathan A. Lockwood, Bruce M. Jelle
  • Patent number: 8709489
    Abstract: The invention provides emulsion compositions that include a hydrophobic compound and an arylboronic acid. An exemplary emulsion comprises a hydrophobic polymer and a halogenated arylboronic acid. Use of an arylboronic acid provides the emulsion with exceptional stability. The stability provides advantages for the formation of articles formed from the emulsion, including microparticles, as well as other implantable or injectable medical articles having polymeric matrices.
    Type: Grant
    Filed: September 30, 2010
    Date of Patent: April 29, 2014
    Assignee: SurModics, Inc.
    Inventors: Joram Slager, Aleksey V. Kurdyumov, Dale G. Swan
  • Patent number: 8586731
    Abstract: Hydrophobic ?(1?4)glucopyranose polymers with enhanced degradation properties are described. Between the ?(1?4)glucopyranose polymeric portion and the hydrophobic portion exists a linker portion having a chemistry that facilitates degradation of the polymer. Diester and carbonate ester linker chemistries are exemplified. Biodegradable matrices can be formed from these polymers, and the matrices can be used for the preparation of implantable and injectable medical devices wherein the matrix is capable of degrading in vivo at an increased rate. Matrices including and capable of releasing a bioactive agent in vivo are also described.
    Type: Grant
    Filed: June 11, 2010
    Date of Patent: November 19, 2013
    Assignee: Surmodics, Inc.
    Inventors: Dale G. Swan, Emily R. Rolfes Meyering, Aleksey V. Kurdyumov, Pamela J. Reed
  • Patent number: 8512736
    Abstract: Biodegradable coatings and articles that include natural biodegradable polysaccharides are described. The coatings and articles are formed from a plurality of natural biodegradable polysaccharides having pendent coupling groups.
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: August 20, 2013
    Assignee: Surmodics, Inc.
    Inventors: Stephen J. Chudzik, Joseph A. Chinn, Dale G. Swan, Michael J. Burkstrand
  • Publication number: 20130143056
    Abstract: Embodiments of the invention include linking agents including photo groups and vinyl groups and coatings and devices that incorporate such linking agents, along with related methods. Exemplary methods herein include methods of priming substrates and methods of coating substrates using compounds having the formula R1—X—R2, wherein R1 is a radical comprising a vinyl group, X is a radical comprising from about one to about twenty carbon atoms, and R2 is a radical comprising a photoreactive group. Embodiments herein also include linking agents having the formula R1—X—R2, wherein R1 is a radical comprising a vinyl group, X is a radical comprising from about one to about twenty carbon atoms, and R2 is a radical comprising a photoreactive group. Other embodiments are also included herein.
    Type: Application
    Filed: June 7, 2012
    Publication date: June 6, 2013
    Applicant: SURMODICS, INC.
    Inventors: Dale G. Swan, Aleksey V. Kurdyumov, Bruce M. Jelle
  • Patent number: 8241656
    Abstract: Medical articles having a body member including natural biodegradable polysaccharides are described. The body member is formed from a plurality of natural biodegradable polysaccharides having pendent coupling groups. The body member can also include a bioactive agent which can be released to provide a therapeutic effect to a patient.
    Type: Grant
    Filed: November 11, 2005
    Date of Patent: August 14, 2012
    Assignee: Surmodics, Inc
    Inventors: Stephen J. Chudzik, Dale G. Swan, Michael J. Burkstrand
  • Patent number: 8241655
    Abstract: Biodegradable coatings that include natural biodegradable polysaccharides are described. The coating is formed from a plurality of natural biodegradable polysaccharides having pendent coupling groups.
    Type: Grant
    Filed: May 12, 2005
    Date of Patent: August 14, 2012
    Assignee: Surmodics, Inc.
    Inventors: Stephen J. Chudzik, Joseph A. Chinn, Dale G. Swan, Michael J. Burkstrand