Patents by Inventor Oleg Velikokhatnyi

Oleg Velikokhatnyi 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: 11896735
    Abstract: The invention includes compositions including magnesium-lithium alloys containing various alloying elements for medical implant devices. The devices are constructed of the compositions or have applied thereto a coating formed therefrom. Within the structure of the magnesium-lithium alloy, there is a co-existence of alpha and beta phases. The invention also includes methods of preparing the magnesium-lithium alloys and articles, such as medical implant devices, for use in medical applications, including orthopedic, dental, craniofacial and cardiovascular surgery.
    Type: Grant
    Filed: July 21, 2021
    Date of Patent: February 13, 2024
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Jingyao Wu, Oleg Velikokhatnyi
  • Patent number: 11728543
    Abstract: The invention relates to lithium ion batteries and, more particularly, to lithium ion conducting composite polymer electrolyte separators. The separators include a nanofiber mat composed of electrospun nanofibers. The nanofibers include a polymer having one or more polar halogen groups, a lithium-containing solid or liquid electrolyte and nanoparticle filler. The polymer, electrolyte and filler are combined to form a solution that is subjected to the electro-spinning process to produce electrospun nanofibers in the form of the mat.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: August 15, 2023
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Bharat Gattu, Moni Kanchan Datta, Oleg Velikokhatnyi, Pavithra Murugavel Shanthi, Prashanth Jampani Hanumantha
  • Publication number: 20230211053
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Application
    Filed: February 24, 2023
    Publication date: July 6, 2023
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
  • Patent number: 11590266
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: February 28, 2023
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Sung Jae Chung, Partha Saha, Oleg Velikokhatnyi, Moni Kanchan Datta, Dae Ho Hong, Da-Tren Chou
  • Patent number: 11575127
    Abstract: The invention relates to composite multilayer lithium ion battery anodes that include a porous metal alloy foam, and a lithium ion conductor coating applied to the metal alloy foam. The metal alloy foam can include structurally isomorphous alloys of lithium and, optionally, lithium and magnesium. The lithium ion conductor coating can include ternary lithium silicate, such as, lithium orthosilicate. Lithium ions from the ternary lithium silicate may be deposited within the pores of the metal alloy foam. Optionally, the lithium ion conductor coating may include a dopant. The dopant can include one or more of magnesium, calcium, vanadium, niobium and fluorine, and mixtures and combinations thereof.
    Type: Grant
    Filed: July 9, 2018
    Date of Patent: February 7, 2023
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Bharat Gattu, Moni Kanchan Datta, Oleg Velikokhatnyi, Pavithra Murugavel Shanthi, Prashanth Jampani Hanumantha
  • Publication number: 20230006214
    Abstract: The invention relates to complex framework materials (CFMs) for lithium-sulfur batteries. The CFMs include a CFM host and a coating applied to the CFM host, which includes one or more of an electronic conductor, a lithium ion conductor and a functional catalyst. Further, sulfur is infiltrated into the CFM host creating a sulfur-carbon linkage serving as effective anchors for trapping polysulfides. The systems have been tested in coin cells and pouch cells under lean electrolyte conditions of 3-4 ?l/mg of electrolyte to sulfur ratios showing promise and feasibility.
    Type: Application
    Filed: December 14, 2020
    Publication date: January 5, 2023
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. KUMTA, Prasada Rao TALAKONDA, Moni Kanchan DATTA, Oleg VELIKOKHATNYI, Pavithra Murugavel SHANTHI, Ramalinga KURUBA
  • Patent number: 11376349
    Abstract: Biodegradable compositions containing from 10.0 to 95.0 weight percent iron for use in preparing medical devices. These biodegradable compositions exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions also include one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique and high energy mechanical alloying followed by compaction and sintering, film deposition techniques, such as, pulsed laser deposition (PLD), as well as melting, casting, homogenization and extrusion methods. The resulting compositions and the medical devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Grant
    Filed: October 3, 2013
    Date of Patent: July 5, 2022
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Sung Jae Chung, Partha Saha, Oleg Velikokhatnyi, Moni Kanchan Datta, Dae Ho Hong, Da-Tren Chou
  • Patent number: 11230775
    Abstract: The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: January 25, 2022
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Karan Sandeep Kadakia, Moni Kanchan Datta, Oleg Velikokhatnyi, Prashanth Jampani Hanumantha
  • Publication number: 20210369914
    Abstract: The invention relates to compositions including magnesium-lithium alloys containing various alloying elements suitable for medical implant devices. The devices may be constructed of the compositions or have applied thereto a coating formed therefrom. Within the structure of the magnesium-lithium alloy, there is a co-existence of alpha and beta phases. The invention also relates to methods of preparing the magnesium-lithium alloys and articles, such as medical implant devices, for use in medical applications, such as but not limited to, orthopedic, dental, craniofacial and cardiovascular surgery.
    Type: Application
    Filed: July 21, 2021
    Publication date: December 2, 2021
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, JINGYAO WU, OLEG VELIKOKHATNYI
  • Patent number: 11077227
    Abstract: The invention relates to compositions including magnesium-lithium alloys containing various alloying elements suitable for medical implant devices. The devices may be constructed of the compositions or have applied thereto a coating formed therefrom. Within the structure of the magnesium-lithium alloy, there is a co-existence of alpha and beta phases. The invention also relates to methods of preparing the magnesium-lithium alloys and articles, such as medical implant devices, for use in medical applications, such as but not limited to, orthopedic, dental, craniofacial and cardiovascular surgery.
    Type: Grant
    Filed: December 9, 2015
    Date of Patent: August 3, 2021
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Jingyao Wu, Oleg Velikokhatnyi
  • Publication number: 20210184226
    Abstract: The invention provides noble metal-free electro-catalyst compositions for use in acidic media, e.g., acidic electrolyte. The noble metal-free electro-catalyst compositions include non-noble metal absent of noble metal. The non-noble metal is non-noble metal oxide, and typically in the form of any configuration of a solid or hollow nano-material, e.g., nano-particles, a nanocrystalline thin film, nanorods, nanoshells, nanoflakes, nanotubes, nanoplates, nanospheres and nanowhiskers or combinations of myriad nanoscale architecture embodiments. Optionally, the noble metal-free electro-catalyst compositions include dopant, such as, but not limited to halogen. Acidic media includes oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, and direct methanol fuel cells and oxygen evolution reaction (OER) in PEM-based water electrolysis and metal air batteries, and hydrogen generation from solar energy and electricity-driven water splitting.
    Type: Application
    Filed: February 25, 2021
    Publication date: June 17, 2021
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, PRASAD P. PATEL, MONI K. DATTA, OLEG VELIKOKHATNYI, PRASHANTH J. HANUMANTHA, RAMALINGA KURUBA, SHRINATH GHADGE
  • Patent number: 10944114
    Abstract: The invention provides noble metal-free electro-catalyst compositions for use in acidic media, e.g., acidic electrolyte. The noble metal-free electro-catalyst compositions include non-noble metal absent of noble metal. The non-noble metal is non-noble metal oxide, and typically in the form of any configuration of a solid or hollow nano-material, e.g., nano-particles, a nanocrystalline thin film, nanorods, nanoshells, nanoflakes, nanotubes, nanoplates, nanospheres and nanowhiskers or combinations of myriad nanoscale architecture embodiments. Optionally, the noble metal-free electro-catalyst compositions include dopant, such as, but not limited to halogen. Acidic media includes oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, and direct methanol fuel cells and oxygen evolution reaction (OER) in PEM-based water electrolysis and metal air batteries, and hydrogen generation from solar energy and electricity-driven water splitting.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: March 9, 2021
    Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: Prashant N. Kumta, Prasad P. Patel, Moni K. Datta, Oleg Velikokhatnyi, Prashanth J. Hanumantha, Ramalinga Kuruba, Shrinath Ghadge
  • Publication number: 20200264663
    Abstract: The invention relates to size-adjustable all-in-on electronic devices. The devices include a plurality of flexible layers in a stacked configuration, comprising: a flexible LED screen, flexible electronics, a flexible battery unit, and a flexible casing. Further, the devices include a flexible anode, flexible cathode and flexible electrolyte. The flexible components are conformable to the size-adjustable all-in-one electronic devices. The size-adjustable, all-in-one electronic devices are a single device that may be folded/unfolded or rolled/unrolled to function as a cell phone, a tablet, and a laptop personal computer.
    Type: Application
    Filed: September 17, 2018
    Publication date: August 20, 2020
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, MONI K. DATTA, OLEG VELIKOKHATNYI, PRASHANTH JAMPANI HANUMANTHA, BHARAT GATTU, PAVITHRA MURUGAVEL SHANTHI
  • Publication number: 20200227736
    Abstract: The invention relates to composite multilayer lithium ion battery anodes that include a porous metal alloy foam, and a lithium ion conductor coating applied to the metal alloy foam. The metal alloy foam can include structurally isomorphous alloys of lithium and, optionally, lithium and magnesium. The lithium ion conductor coating can include ternary lithium silicate, such as, lithium orthosilicate. Lithium ions from the ternary lithium silicate may be deposited within the pores of the metal alloy foam. Optionally, the lithium ion conductor coating may include a dopant. The dopant can include one or more of magnesium, calcium, vanadium, niobium and fluorine, and mixtures and combinations thereof.
    Type: Application
    Filed: July 9, 2018
    Publication date: July 16, 2020
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, BHARAT GATTU, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PAVITHRA MURUGAVEL SHANTHI, PRASHANTH JAMPANI HANUMANTHA
  • Publication number: 20200136113
    Abstract: The invention relates to lithium ion batteries and, more particularly, to lithium ion conducting composite polymer electrolyte separators. The separators include a nanofiber mat composed of electrospun nanofibers. The nanofibers include a polymer having one or more polar halogen groups, a lithium-containing solid or liquid electrolyte and nanoparticle filler. The polymer, electrolyte and filler are combined to form a solution that is subjected to the electro-spinning process to produce electrospun nanofibers in the form of the mat.
    Type: Application
    Filed: July 9, 2018
    Publication date: April 30, 2020
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, BHARAT GATTU, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PAVITHRA MURUGAVEL SHANTHI, PRASHANTH JAMPANI HANUMANTHA
  • Publication number: 20200131651
    Abstract: The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors.
    Type: Application
    Filed: September 4, 2019
    Publication date: April 30, 2020
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, KARAN SANDEEP KADAKIA, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PRASHANTH JAMPANI HANUMANTHA
  • Publication number: 20200000973
    Abstract: The invention relates to biodegradable iron alloy-containing compositions for use in preparing medical devices. In addition, biodegradable crystalline and amorphous compositions of the invention exhibit properties that make them suitable for use as medical devices for implantation into a body of a patient. The compositions include elemental iron and one or more elements selected from manganese, magnesium, zirconium, zinc and calcium. The compositions can be prepared using a high energy milling technique. The resulting compositions and the devices formed therefrom are useful in various surgical procedures, such as but not limited to orthopedic, craniofacial and cardiovascular.
    Type: Application
    Filed: September 4, 2019
    Publication date: January 2, 2020
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
  • Patent number: 10435803
    Abstract: The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors.
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: October 8, 2019
    Assignee: University of Pittsburgh—Of the Commonwealth System of Higher Education
    Inventors: Prashant N. Kumta, Karan Sandeep Kadakia, Moni Kanchan Datta, Oleg Velikokhatnyi, Prashanth Jampani Hanumantha
  • Publication number: 20180331369
    Abstract: The invention provides noble metal-free electro-catalyst compositions for use in acidic media, e.g., acidic electrolyte. The noble metal-free electro-catalyst compositions include non-noble metal absent of noble metal. The non-noble metal is non-noble metal oxide, and typically in the form of any configuration of a solid or hollow nano-material, e.g., nano-particles, a nanocrystalline thin film, nanorods, nanoshells, nanoflakes, nanotubes, nanoplates, nanospheres and nanowhiskers or combinations of myriad nanoscale architecture embodiments. Optionally, the noble metal-free electro-catalyst compositions include dopant, such as, but not limited to halogen. Acidic media includes oxygen reduction reaction (ORR) in proton exchange membrane (PEM) fuel cells, and direct methanol fuel cells and oxygen evolution reaction (OER) in PEM-based water electrolysis and metal air batteries, and hydrogen generation from solar energy and electricity-driven water splitting.
    Type: Application
    Filed: December 12, 2016
    Publication date: November 15, 2018
    Applicant: University of Pittsburgh - Of the Commonwealth System of Higher Education
    Inventors: Prashant N. Kumta, Prasad P. Patel, Moni K. Datta, Oleg Velikokhatnyi, Prashanth J. Hanumantha, Ramalinga Kuruba, Shrinath Ghadge
  • Publication number: 20180320278
    Abstract: The invention provides electro-catalyst compositions for an anode electrode of an acid mediated proton exchange membrane-based water electrolysis system. The compositions include a noble metal component selected from the group consisting of iridium oxide, ruthenium oxide, rhenium oxide and mixtures thereof, and a non-noble metal component selected from the group consisting of tantalum oxide, tin oxide, niobium oxide, titanium oxide, tungsten oxide, molybdenum oxide, yttrium oxide, scandium oxide, cooper oxide, zirconium oxide, nickel oxide and mixtures thereof. Further, the non-noble metal component can include a dopant. The dopant can be at least one element selected from Groups III, V, VI and VII of the Periodic Table. The compositions can be prepared using any solution based methods involving a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors.
    Type: Application
    Filed: July 11, 2018
    Publication date: November 8, 2018
    Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PRASHANT N. KUMTA, KARAN SANDEEP KADAKIA, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PRASHANTH JAMPANI HANUMANTHA