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).
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Patent number: 11896735Abstract: 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: GrantFiled: July 21, 2021Date of Patent: February 13, 2024Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Jingyao Wu, Oleg Velikokhatnyi
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Patent number: 11728543Abstract: 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: GrantFiled: July 9, 2018Date of Patent: August 15, 2023Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Bharat Gattu, Moni Kanchan Datta, Oleg Velikokhatnyi, Pavithra Murugavel Shanthi, Prashanth Jampani Hanumantha
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Publication number: 20230211053Abstract: 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: ApplicationFiled: February 24, 2023Publication date: July 6, 2023Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
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Patent number: 11590266Abstract: 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: GrantFiled: September 4, 2019Date of Patent: February 28, 2023Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Sung Jae Chung, Partha Saha, Oleg Velikokhatnyi, Moni Kanchan Datta, Dae Ho Hong, Da-Tren Chou
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Patent number: 11575127Abstract: 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: GrantFiled: July 9, 2018Date of Patent: February 7, 2023Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Bharat Gattu, Moni Kanchan Datta, Oleg Velikokhatnyi, Pavithra Murugavel Shanthi, Prashanth Jampani Hanumantha
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Publication number: 20230006214Abstract: 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: ApplicationFiled: December 14, 2020Publication date: January 5, 2023Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. KUMTA, Prasada Rao TALAKONDA, Moni Kanchan DATTA, Oleg VELIKOKHATNYI, Pavithra Murugavel SHANTHI, Ramalinga KURUBA
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Patent number: 11376349Abstract: 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: GrantFiled: October 3, 2013Date of Patent: July 5, 2022Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Sung Jae Chung, Partha Saha, Oleg Velikokhatnyi, Moni Kanchan Datta, Dae Ho Hong, Da-Tren Chou
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Patent number: 11230775Abstract: 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: GrantFiled: September 4, 2019Date of Patent: January 25, 2022Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Karan Sandeep Kadakia, Moni Kanchan Datta, Oleg Velikokhatnyi, Prashanth Jampani Hanumantha
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Publication number: 20210369914Abstract: 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: ApplicationFiled: July 21, 2021Publication date: December 2, 2021Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, JINGYAO WU, OLEG VELIKOKHATNYI
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Patent number: 11077227Abstract: 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: GrantFiled: December 9, 2015Date of Patent: August 3, 2021Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Jingyao Wu, Oleg Velikokhatnyi
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Publication number: 20210184226Abstract: 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: ApplicationFiled: February 25, 2021Publication date: June 17, 2021Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, PRASAD P. PATEL, MONI K. DATTA, OLEG VELIKOKHATNYI, PRASHANTH J. HANUMANTHA, RAMALINGA KURUBA, SHRINATH GHADGE
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Patent number: 10944114Abstract: 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: GrantFiled: December 12, 2016Date of Patent: March 9, 2021Assignee: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Prasad P. Patel, Moni K. Datta, Oleg Velikokhatnyi, Prashanth J. Hanumantha, Ramalinga Kuruba, Shrinath Ghadge
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Publication number: 20200264663Abstract: 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: ApplicationFiled: September 17, 2018Publication date: August 20, 2020Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, MONI K. DATTA, OLEG VELIKOKHATNYI, PRASHANTH JAMPANI HANUMANTHA, BHARAT GATTU, PAVITHRA MURUGAVEL SHANTHI
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Publication number: 20200227736Abstract: 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: ApplicationFiled: July 9, 2018Publication date: July 16, 2020Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, BHARAT GATTU, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PAVITHRA MURUGAVEL SHANTHI, PRASHANTH JAMPANI HANUMANTHA
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Publication number: 20200136113Abstract: 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: ApplicationFiled: July 9, 2018Publication date: April 30, 2020Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, BHARAT GATTU, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PAVITHRA MURUGAVEL SHANTHI, PRASHANTH JAMPANI HANUMANTHA
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Publication number: 20200131651Abstract: 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: ApplicationFiled: September 4, 2019Publication date: April 30, 2020Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, KARAN SANDEEP KADAKIA, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PRASHANTH JAMPANI HANUMANTHA
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Publication number: 20200000973Abstract: 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: ApplicationFiled: September 4, 2019Publication date: January 2, 2020Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, SUNG JAE CHUNG, PARTHA SAHA, OLEG VELIKOKHATNYI, MONI KANCHAN DATTA, DAE HO HONG, DA-TREN CHOU
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Patent number: 10435803Abstract: 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: GrantFiled: July 11, 2018Date of Patent: October 8, 2019Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Karan Sandeep Kadakia, Moni Kanchan Datta, Oleg Velikokhatnyi, Prashanth Jampani Hanumantha
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Publication number: 20180331369Abstract: 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: ApplicationFiled: December 12, 2016Publication date: November 15, 2018Applicant: University of Pittsburgh - Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Prasad P. Patel, Moni K. Datta, Oleg Velikokhatnyi, Prashanth J. Hanumantha, Ramalinga Kuruba, Shrinath Ghadge
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Publication number: 20180320278Abstract: 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: ApplicationFiled: July 11, 2018Publication date: November 8, 2018Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, KARAN SANDEEP KADAKIA, MONI KANCHAN DATTA, OLEG VELIKOKHATNYI, PRASHANTH JAMPANI HANUMANTHA