Patents by Inventor Daniel J. Hassett

Daniel J. Hassett 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: 10724070
    Abstract: Stable, constitutively expressed, chromosomal fluorescent transcriptional fusions in bacterial pathogens and methods of using the same to screen candidate compounds for anti-bacterial efficacy.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: July 28, 2020
    Assignees: University of Cincinnati, Government of the United States as Represented by the Secretary of the Air Force
    Inventors: Daniel J. Hassett, Shengchang Su, Thomas J. Lamkin, Roland Saldanha
  • Patent number: 10704076
    Abstract: A high through-put screening method for identifying agents effective for inhibiting biofilm formation and/or killing established biofilm are disclosed. The method includes three tiers, and each tier includes three specific biological process assays. The tier levels are a primary screen, a confirmation screen, and a dose-response screen, and the biological process assays include assays for total bacterial growth, bacterial metabolic activity, and biofilm formation. The series of assays may be run once or more than once at each tier. A library of compounds is subject to tier A and only compounds meeting a primary parameter advance to tier B, and only tier B compounds meeting a confirmation parameter advance to tier C, and only tier C compounds meeting a dose-response parameter are identified as putative agents effective for inhibiting and/or eradicating a biofilm, further wherein the assays are conducted for each compound subject to the respective tier.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: July 7, 2020
    Assignees: University of Cincinnati, Government of the United States as Represented by the Secretary of the Air Force
    Inventors: Daniel J. Hassett, Thomas J. Lamkin, Warunya Panmanee, Deborah E. Taylor, Chloe J. A. Shea
  • Publication number: 20190127776
    Abstract: A high through-put screening method for identifying agents effective for inhibiting biofilm formation and/or killing established biofilm are disclosed. The method includes three tiers, and each tier includes three specific biological process assays. The tier levels are a primary screen, a confirmation screen, and a dose-response screen, and the biological process assays include assays for total bacterial growth, bacterial metabolic activity, and biofilm formation. The series of assays may be run once or more than once at each tier. A library of compounds is subject to tier A and only compounds meeting a primary parameter advance to tier B, and only tier B compounds meeting a confirmation parameter advance to tier C, and only tier C compounds meeting a dose-response parameter are identified as putative agents effective for inhibiting and/or eradicating a biofilm, further wherein the assays are conducted for each compound subject to the respective tier.
    Type: Application
    Filed: December 18, 2018
    Publication date: May 2, 2019
    Applicants: University of Cincinnati, Government of the United States as Represented by the Secretary of the Air Force
    Inventors: Daniel J. Hassett, Thomas J. Lamkin, Warunya Panmanee, Deborah E. Taylor, Chloe J.A. Shea
  • Patent number: 10202631
    Abstract: A high through-put screening method for identifying agents effective for inhibiting biofilm formation and/or killing established biofilm are disclosed. The method includes three tiers, and each tier includes three specific biological process assays. The tier levels are a primary screen, a confirmation screen, and a dose-response screen, and the biological process assays include as says for total bacterial growth, bacterial metabolic activity, and biofilm formation.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: February 12, 2019
    Assignees: University of Cincinnati, The United States of America as Represented by the Secretary of the Air Force
    Inventors: Daniel J. Hassett, Thomas J. Lamkin, Warunya Panmanee, Deborah E. Taylor, Chloe J. A. Shea
  • Patent number: 9925206
    Abstract: Compositions and methods of utilizing the same are provided for treating bacterial infections. The compositions comprise acidified nitrite in combination with an iron chelator and an antibiotic. The compositions of the present invention are effective at treating bacterial infections with minimal to no side effects. Surprisingly, the combination of these three agents has a synergistic effect, which advantageously permits a lower dose of one or more of the active agents (e.g., the antibiotic).
    Type: Grant
    Filed: March 10, 2016
    Date of Patent: March 27, 2018
    Assignee: UNIVERSITY OF CINCINNATI
    Inventor: Daniel J. Hassett
  • Publication number: 20160263151
    Abstract: Compositions and methods of utilizing the same are provided for treating bacterial infections. The compositions comprise acidified nitrite in combination with an iron chelator and an antibiotic. The compositions of the present invention are effective at treating bacterial infections with minimal to no side effects. Surprisingly, the combination of these three agents has a synergistic effect, which advantageously permits a lower dose of one or more of the active agents (e.g., the antibiotic).
    Type: Application
    Filed: March 10, 2016
    Publication date: September 15, 2016
    Inventor: DANIEL J. HASSETT
  • Publication number: 20160024551
    Abstract: A high through-put screening method for identifying agents effective for inhibiting biofilm formation and/or killing established biofilm are disclosed. The method includes three tiers, and each tier includes three specific biological process assays. The tier levels are a primary screen, a confirmation screen, and a dose-response screen, and the biological process assays include as says for total bacterial growth, bacterial metabolic activity, and biofilm formation.
    Type: Application
    Filed: March 14, 2014
    Publication date: January 28, 2016
    Applicants: UNIVERSITY OF CINCINNATI, GOVERNMENT OF THE UNITED STATES, AS REPRESENTED BY THE SECRETARY OF THE AIR FORCE
    Inventors: Daniel J. Hassett, Thomas J. Lamkin, Warunya Panmanee, Deborah E. Taylor, Chioe J.A. Shea
  • Publication number: 20140377846
    Abstract: Provided herein are compositions, methods and systems to prevent unauthorized use or release into the environment of genetically modified organisms or cells which comprises a) a genetically modified organism or cell and b) one or more keys, wherein contacting the genetically modified organisms or cell with the key results in viability or unviability of the genetically modified organism or cell.
    Type: Application
    Filed: March 18, 2014
    Publication date: December 25, 2014
    Applicant: Bacterial Robotics, LLC
    Inventors: Jason E. Barkeloo, Pablo J. Pomposiello, Daniel J. Hassett, Shengchang Su
  • Publication number: 20140378343
    Abstract: Stable, constitutively expressed, chromosomal fluorescent transcriptional fusions in bacterial pathogens and methods of using the same to screen candidate compounds for anti-bacterial efficacy.
    Type: Application
    Filed: November 14, 2013
    Publication date: December 25, 2014
    Inventors: Daniel J. Hassett, Shengchang Su, Thomas J. Lankin, Roland Saldanha
  • Patent number: 8557300
    Abstract: Methods for treating bacterial respiratory tract infections in an individual comprise administering a therapeutic amount of nitrite composition having a pH of less than 7, and in specific embodiments, a pH of about 5.5-6.5, to the individual. The individual may be a pulmonary disease diagnosed individual and/or the infection may be at least in part caused by mucoid mucA mutant Pseudomonas aeruginosa.
    Type: Grant
    Filed: May 18, 2006
    Date of Patent: October 15, 2013
    Assignee: University of Cincinnati
    Inventor: Daniel J. Hassett
  • Patent number: 8354267
    Abstract: Transgenic microbes with an altered electrogenic efficacy, biofilms comprising such microbes, and microbial fuel cells comprising such microbes are provided. The microbial fuel cells can be operated as monitors, filtration devices, and sensors.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: January 15, 2013
    Assignees: Bacterial Robotics, LLC, University of Cincinnati
    Inventors: Jason E. Barkeloo, Daniel J. Hassett, Randall T. Irvin
  • Publication number: 20100297737
    Abstract: Transgenic microbes with an altered electrogenic efficacy, biofilms comprising such microbes, and microbial fuel cells comprising such microbes are provided. The microbial fuel cells can be operated as monitors, filtration devices, and sensors.
    Type: Application
    Filed: February 23, 2010
    Publication date: November 25, 2010
    Inventors: JASON E. BARKELOO, DANIEL J. HASSETT, RANDALL T. IRVIN
  • Publication number: 20100279178
    Abstract: Microbial fuel cells may include anode(s), cathode(s) and a biofilm attached to at least the anode. The biofilm may include bacterial cells adapted to facilitate transfer of a plurality of electrons to the anode from a feedstock. In an example embodiment, a microbial fuel surface may include a large surface area to volume ratio in order to increase power (electron) generation and/or transfer.
    Type: Application
    Filed: February 23, 2010
    Publication date: November 4, 2010
    Inventors: Jason E. Barkeloo, Daniel J. Hassett, Randall T. Irvin
  • Publication number: 20080260865
    Abstract: Methods for treating bacterial respiratory tract infections in an individual comprise administering a therapeutic amount of nitrite composition having a pH of less than 7, and in specific embodiments, a pH of about 5.5-6.5, to the individual. The individual may be a pulmonary disease diagnosed individual and/or the infection may be at least in part caused by mucoid mucA mutant Pseudomonas aeruginosa.
    Type: Application
    Filed: May 18, 2006
    Publication date: October 23, 2008
    Applicant: UNIVERSITY OF CINCINNATI
    Inventor: Daniel J. Hassett
  • Publication number: 20040266749
    Abstract: Methods for Cystic Fibrosis disease assessment in an individual comprise detecting the presence or absence of outer membrane protein in a sample from an individual or the methods comprise detecting the presence or absence of outer membrane protein antibodies in a sample from an individual. Methods for treating anaerobic Pseudomonas aeruginosa biofilms in Cystic Fibrosis disease comprise detecting the presence of outer membrane protein in a sample from an individual; and selecting a therapy regimen for the individual based on the presence of OprF, wherein the anaerobic Pseudomonas aeruginosa biofilms in Cystic Fibrosis disease are treated by the therapy regimen or the methods comprise detecting the presence of outer membrane protein antibodies in a sample from an individual; and selecting a therapy regimen for the individual based on the presence of OprF antibodies; wherein the anaerobic Pseudomonas aeruginosa biofilms in Cystic Fibrosis disease are treated by the therapy regimen.
    Type: Application
    Filed: October 20, 2003
    Publication date: December 30, 2004
    Inventors: Daniel J. Hassett, George M. Hilliard, San-Sun Yoon