Patents by Inventor Warren O. Haggard

Warren O. Haggard 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: 20230226190
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: January 27, 2023
    Publication date: July 20, 2023
    Applicant: The University of Memphis Research Foundation
    Inventors: Warren O. HAGGARD, Scott P. NOEL, Joel D. BUMGARDNER
  • Patent number: 11576975
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: February 14, 2023
    Assignee: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Publication number: 20210275440
    Abstract: The invention provides microbeads comprising chitosan, a magnetic nanoparticle, and an agent, and methods for using such microbeads for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection or disease.
    Type: Application
    Filed: September 27, 2017
    Publication date: September 9, 2021
    Applicant: THE UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: ANKITA MOHAPATRA, MICHAEL A. HARRIS, BASHIR I. MORSHED, JESSICA A. JENNINGS, JOEL BUMGARDNER, TOMOKO FUJIWARA, SANJAY R. MISHRA, DAVID A. LEVINE, GREGORY MCGRAW, WARREN O. HAGGARD
  • Publication number: 20210113699
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: September 21, 2020
    Publication date: April 22, 2021
    Applicant: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: WARREN O. HAGGARD, SCOTT P. NOEL, JOEL D. BUMGARDNER
  • Patent number: 10799592
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: October 13, 2020
    Assignee: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Publication number: 20190192666
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: July 31, 2018
    Publication date: June 27, 2019
    Applicant: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: WARREN O. HAGGARD, SCOTT P. NOEL, JOEL D. BUMGARDNER
  • Patent number: 10052388
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Grant
    Filed: April 10, 2017
    Date of Patent: August 21, 2018
    Assignee: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Publication number: 20170258967
    Abstract: The invention provides compositions featuring chitosan and polyethylene glycol and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the chitosan-PEG compositions can be loaded with one or more antimicrobial agents, including hydrophobic agents, and can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: February 13, 2015
    Publication date: September 14, 2017
    Applicant: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: Warren O. HAGGARD, Ashley C. PARKER, Jessica Amber JENNINGS
  • Publication number: 20170209583
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: April 10, 2017
    Publication date: July 27, 2017
    Applicant: UNIVERSITY OF MEMPHIS RESEARCH FOUNDATION
    Inventors: WARREN O. HAGGARD, SCOTT P. NOEL, JOEL D. BUMGARDNER
  • Patent number: 9662400
    Abstract: The invention provides improved methods for generating biodegradable chitosan compositions, and therapeutic methods of using such compositions to deliver therapeutic agents.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: May 30, 2017
    Assignee: The University of Memphis Research Foundation
    Inventors: James Keaton Smith, Ashley C. Parker, Jessica A. Jennings, Benjamin T. Reves, Warren O. Haggard
  • Patent number: 9642948
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Grant
    Filed: February 10, 2015
    Date of Patent: May 9, 2017
    Assignee: The University of Memphis Research Foundation
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Publication number: 20160000924
    Abstract: The invention provides improved methods for generating biodegradable chitosan compositions, and therapeutic methods of using such compositions to deliver therapeutic agents.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 7, 2016
    Applicant: University of Memphis Research Foundation
    Inventors: James Keaton Smith, Ashley C. Parker, Jessica A. Jennings, Benjamin T. Reves, Warren O. Haggard
  • Publication number: 20150224236
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: February 10, 2015
    Publication date: August 13, 2015
    Applicant: University of Memphis Research Foundation
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Patent number: 8993540
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Grant
    Filed: March 16, 2010
    Date of Patent: March 31, 2015
    Assignee: University of Memphis Research Foundation
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Publication number: 20120149659
    Abstract: The invention provides compositions featuring chitosan and methods for using such compositions for the local delivery of biologically active agents to an open fracture, complex wound or other site of infection. Advantageously, the degradation and drug elution profiles of the chitosan compositions can be tailored to the needs of particular patients at the point of care (e.g., in a surgical suite, clinic, physician's office, or other clinical setting).
    Type: Application
    Filed: March 16, 2010
    Publication date: June 14, 2012
    Applicant: University of Memphis Research Foundation
    Inventors: Warren O. Haggard, Scott P. Noel, Joel D. Bumgardner
  • Patent number: 7923021
    Abstract: This invention provides a rapidly degrading composition for local delivery of a medicament, such as, an antibiotic. Additionally, this invention provides a method that can be used on the battlefield to deliver antibiotics as a preliminary treatment through the use of a rapidly degrading composition.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: April 12, 2011
    Assignee: University of Memphis Research Foundation
    Inventors: Warren O. Haggard, Kelly C. Richelsoph
  • Patent number: 7766972
    Abstract: The invention includes a synthetic bone substitute material suitable for use as a replacement for cancellous bone in a bone graft composition, the material comprising a reticulated framework of interconnecting bioceramic struts defining an interconnecting interstitial void volume, and a solid non-porous composition substantially filling the interstitial void volume and in intimate contact with the reticulated framework, the pore-filling composition comprising calcium sulfate. Calcium triphosphate is a preferred bioceramic material for the reticulated framework.
    Type: Grant
    Filed: July 2, 2007
    Date of Patent: August 3, 2010
    Assignee: Wright Medical Technology, Inc.
    Inventors: Robyn J. Overby, Olaf H. Schulz, Ann V. Burgess, Warren O. Haggard, Michael Vincent
  • Publication number: 20090028922
    Abstract: This invention provides a rapidly degrading composition for local delivery of a medicament, such as, an antibiotic. Additionally, this invention provides a method that can be used on the battlefield to deliver antibiotics as a preliminary treatment through the use of a rapidly degrading composition.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 29, 2009
    Inventors: Warren O. Haggard, Kelly C. Richelsoph
  • Patent number: 7371408
    Abstract: A bone graft substitute composition comprising calcium sulfate; a mixing solution selected from the group consisting of sterile water, sodium chloride, phosphate buffered saline, potassium chloride, and sodium sulfate; and a plasticizing substance selected from the group consisting of carboxymethylcellulose, polyvinyl alcohol, methycellulose, and hydroxypropyl methylcellulose.
    Type: Grant
    Filed: June 7, 1999
    Date of Patent: May 13, 2008
    Assignee: Wright Medical Technology, Inc.
    Inventors: Donald W. Petersen, Warren O. Haggard, Donald A. Randolph, Cary P. Hagan
  • Publication number: 20080081060
    Abstract: A biodegradable medicament delivery system comprising a multi-layered calcium-sulfate based drug delivery vehicle. The vehicle comprises a calcium sulfate center or core with the medicament or medicaments, encased in one or more layers of chitosan. The chitosan may be cross-linked with a cross-linking agent. The vehicle may comprise any suitable shape, including, but not limited to, a sphere, bead or pellet. Medicaments include, but are not limited to, antibiotics, anesthetics, growth factors, and proteins. A physician can implant the coated vehicles into the desired site to create a beneficial, localized treatment that produces high local concentrations of medication while reducing the overall serum concentration throughout the body.
    Type: Application
    Filed: October 3, 2007
    Publication date: April 3, 2008
    Inventors: Warren O. Haggard, Joel D. Bumgardner, Scott Noel, Kelly Richelsoph, Youling Yuan