Patents by Inventor David Tugushi

David Tugushi 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: 11684587
    Abstract: A method of treating, reducing or preventing bacterial infection in a wound, the method comprising: applying a film on the wound, the film including a biodegradable polymer with bacteriophages dispersed therein, wherein the polymer is a poly (ester amide urea).
    Type: Grant
    Filed: July 20, 2022
    Date of Patent: June 27, 2023
    Assignee: PHAGELUX (CANADA) INC.
    Inventors: Nancy Tawil, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Patent number: 11564894
    Abstract: A method of treating, reducing or preventing bacterial infection in a wound, the method comprising: applying a film on the wound, the film including a biodegradable polymer with bacteriophages dispersed therein, wherein the polymer is a poly (ester amide urea).
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: January 31, 2023
    Assignee: PHAGELUX (CANADA) INC.
    Inventors: Nancy Tawil, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Publication number: 20230015373
    Abstract: A method of treating, reducing or preventing bacterial infection in a wound, the method comprising: applying a film on the wound, the film including a biodegradable polymer with bacteriophages dispersed therein, wherein the polymer is a poly (ester amide urea).
    Type: Application
    Filed: July 20, 2022
    Publication date: January 19, 2023
    Inventors: Nancy Tawil, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Publication number: 20220409683
    Abstract: An encapsulated bacteriophage formulation and a method for encapsulating bacteriophages and bacteriophage-related products in polymeric microcapsules is provided. Some embodiments of the method of producing the encapsulated bacteriophages involves a water-in-oil-in-water double emulsion.
    Type: Application
    Filed: July 22, 2022
    Publication date: December 29, 2022
    Inventors: Nancy TAWIL, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Patent number: 11413319
    Abstract: An encapsulated bacteriophage formulation and a method for encapsulating bacteriophages and bacteriophage-related products in polymeric microcapsules is provided. Some embodiments of the method of producing the encapsulated bacteriophages involves a water-in-oil-in-water double emulsion.
    Type: Grant
    Filed: November 4, 2020
    Date of Patent: August 16, 2022
    Assignee: PHAGELUX (CANADA) INC.
    Inventors: Nancy Tawil, Edwige Caroline Rebecca Arnold, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Publication number: 20210046132
    Abstract: An encapsulated bacteriophage formulation and a method for encapsulating bacteriophages and bacteriophage-related products in polymeric microcapsules is provided. Some embodiments of the method of producing the encapsulated bacteriophages involves a water-in-oil-in-water double emulsion.
    Type: Application
    Filed: November 4, 2020
    Publication date: February 18, 2021
    Inventors: Nancy TAWIL, Edwige Caroline Rebecca ARNOLD, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Patent number: 10849944
    Abstract: An encapsulated bacteriophage formulation and a method for encapsulating bacteriophages and bacteriophage-related products in polymeric microcapsules is provided. Some embodiments of the method of producing the encapsulated bacteriophages involves a water-in-oil-in-water double emulsion.
    Type: Grant
    Filed: June 22, 2017
    Date of Patent: December 1, 2020
    Assignee: PHAGELUX (CANADA) INC.
    Inventors: Nancy Tawil, Edwige Caroline Rebecca Arnold, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Publication number: 20200368176
    Abstract: A method of treating, reducing or preventing bacterial infection in a wound, the method comprising: applying a film on the wound, the film including a biodegradable polymer with bacteriophages dispersed therein, wherein the polymer is a poly (ester amide urea).
    Type: Application
    Filed: August 13, 2020
    Publication date: November 26, 2020
    Inventors: Nancy Tawil, Ramaz Katsarava, David Tugushi, Vakhtang Beridze
  • Patent number: 10772964
    Abstract: Amino acid based polymers and polymer blends. Compositions comprising at least one amino acid based polymer or polymer blend, at least one bioactive agent, and optionally at least one filler. Additionally, compositions comprising at least one bacteriophage and at least one salt or buffer, which, for example, are in the form of a dry powder, and methods of preparing thereof are disclosed.
    Type: Grant
    Filed: June 21, 2016
    Date of Patent: September 15, 2020
    Assignee: Phagelux (Canada), Inc.
    Inventors: Ramaz Katsarava, David Tugushi, Vakhtang Beridze, Nancy Tawil
  • Publication number: 20160375139
    Abstract: Amino acid based polymers and polymer blends. Compositions comprising at least one amino acid based polymer or polymer blend, at least one bioactive agent, and optionally at least one filler. Additionally, compositions comprising at least one bacteriophage and at least one salt or buffer, which, for example, are in the form of a dry powder, and methods of preparing thereof are disclosed.
    Type: Application
    Filed: June 21, 2016
    Publication date: December 29, 2016
    Applicant: Phagelux (Canada), Inc.
    Inventors: Ramaz KATSARAVA, David TUGUSHI, Vakhtang BERIDZE, Nancy Tawil
  • Patent number: 8765164
    Abstract: The invention provides high molecular weight, crystalline or semi crystalline biodegradable and biocompatible poly(ester urea) (PEU) polymers useful for making vascular stents and hard tissue replacement implants, such as bone substitutes. The PEU polymers are based on ? amino acids and are made by a polycondensation reaction. PEU polymer compositions can contain a therapeutic diol incorporated into the polymer backbone that is released from such an implant in situ. Bioactive agents, such as analgesics, antibiotics, and the like, can also be covalently attached to certain PEU polymers for release into tissue surrounding an implant during biodegradation of the polymer.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: July 1, 2014
    Inventors: Ramaz Katsarava, David Tugushi, Zaza D. Gomurashvili
  • Publication number: 20100040664
    Abstract: The invention provides AABB-poly(depsipeptide)s (AABB-PDPs), a class of biodegradable polymers composed of ?-amino and ?-hydroxy acids with material properties suitable for biomedical applications. These AABB-PDPs belong to the family of amino acid-based poly(ester amide)s (PEAs), which are characterized by the presence of alternating ester and amide functionalities. Containing four ether groups per basic unit, these polymers degrade rapidly by biotic or abiotic hydrolytic action to release dispersed bioactive agents at a controlled delivery rate, are non-toxic, produce digestible breakdown products, and are easy to fabricate by solution polycondensation.
    Type: Application
    Filed: August 12, 2009
    Publication date: February 18, 2010
    Applicant: MediVas, LLC
    Inventors: Ramaz Katsarava, Natia Ochkhikdze, David Tugushi, Zaza D. Gomurashvili
  • Patent number: 7649022
    Abstract: The invention provides elastomeric polymer networks and semi-interpenetrating networks in which a linear PEA, PEUR or PEU polymer is crosslinked by ester or alpha-amino-acid containing cross-linkers that polymerize upon exposure to active species. Bioabsorbable elastomeric internal fixation devices fabricated using such polymer networks and semi-interpenetrating networks are useful for in vivo implant and delivery of a variety of different types of molecules in a time release fashion. Alpha-amino-acid containing ester amide cross-linkers are also provided by the invention.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: January 19, 2010
    Assignee: MediVas, LLC
    Inventors: Zaza D. Gomurashvili, Ramaz Katsarava, Giorgi Chumburdze, Nino Mumladze, David Tugushi
  • Publication number: 20090253809
    Abstract: The invention provides elastomeric polymer networks and semi-interpenetrating networks in which a linear PEA, PEUR or PEU polymer is crosslinked by ester or alpha-amino-acid containing cross-linkers that polymerize upon exposure to active species. Bioabsorbable elastomeric internal fixation devices fabricated using such polymer networks and semi-interpenetrating networks are useful for in vivo implant and delivery of a variety of different types of molecules in a time release fashion. Alpha-amino-acid containing ester amide cross-linkers are also provided by the invention.
    Type: Application
    Filed: March 28, 2008
    Publication date: October 8, 2009
    Applicant: MediVas, LLC
    Inventors: Zaza D. Gomurashvili, Ramaz Katsarava, Giorgi Chumburdze, Nino Mumladze, David Tugushi
  • Publication number: 20080050419
    Abstract: The invention provides aliphatic epoxy-containing PEA polymer compositions with film-forming properties. The aliphatic epoxy di-acids used in the invention PEA compositions include non-toxic fatty aliphatic epoxy homologs. A second, C-protected L-lysine-based monomer can be introduced into the polymer to provide additional chain flexibility. The invention PEA polymer compositions are useful for delivery of bioactive agents when administered internally or used in the manufacture of implantable medical devices. Biodegradable hydrogels can be made using the invention epoxy-containing PEAs.
    Type: Application
    Filed: August 16, 2007
    Publication date: February 28, 2008
    Applicant: MediVas, LLC
    Inventors: Ramaz Katsarava, David Tugushi, Nino Zavradashvili, Zaza Gomurashvili
  • Publication number: 20070128250
    Abstract: The invention provides high molecular weight, crystalline or semi crystalline biodegradable and biocompatible poly(ester urea) (PEU) polymers useful for making vascular stents and hard tissue replacement implants, such as bone substitutes. The PEU polymers are based on ? amino acids and are made by a polycondensation reaction. PEU polymer compositions can contain a therapeutic diol incorporated into the polymer backbone that is released from such an implant in situ. Bioactive agents, such as analgesics, antibiotics, and the like, can also be covalently attached to certain PEU polymers for release into tissue surrounding an implant during biodegradation of the polymer.
    Type: Application
    Filed: October 19, 2006
    Publication date: June 7, 2007
    Applicant: MediVas, LLC
    Inventors: Ramaz Katsarava, David Tugushi, Zaza Gomurashvili