Patents by Inventor Prashant N. Kumta
Prashant N. Kumta 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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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
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Publication number: 20180292400Abstract: The invention relates to ex-situ biosensors that impedimetrically detect cardiac biomarkers of interest in a bodily fluid sample derived from a patient. The biosensors include a multi-array of vertically aligned platinum wires having immobilized thereon an aptamer that is selected to specifically and selectively bind to the cardiac markers of interest. The biosensors are contacted with a portion of the bodily fluid sample, and the aptamer binds to the cardiac markers of interest in the bodily fluid sample. As a result, an electrochemical impedance signal is generated and therefore, a change in electrochemical impedance is indicative of the presence of the cardiac markers of interest in the bodily fluid sample. The biosensors are point-of-care, on-demand devices that can be used in a medical environment, as well as in domestic settings.Type: ApplicationFiled: October 4, 2016Publication date: October 11, 2018Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Mitali S. Patil
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Publication number: 20180221545Abstract: The invention relates to biodegradable, magnesium alloys, compositions and composites, methods for their preparation and applications for their use as implantable medical devices in load-bearing conditions. The magnesium alloys are composed of alloying elements selected from yttrium, calcium, zirconium, zinc, and strontium, with the remainder being magnesium and impurities due to production, and are prepared by melting together the elements and casting the resulting melted mixture. In certain embodiments, the methods of preparation include solution treatment and hot extrusion.Type: ApplicationFiled: August 22, 2016Publication date: August 9, 2018Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTE M OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, ABHIJIT ROY, DA-TREN CHOU, DAEHO HONG, VIJAY S. GORANTLA
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Patent number: 10041179Abstract: 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: December 21, 2016Date of Patent: August 7, 2018Assignee: 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: 20180175441Abstract: The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 and the precursors have a general formula of MxMo6Z8. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.Type: ApplicationFiled: February 15, 2018Publication date: June 21, 2018Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, PARTHA SAHA, MONI KANCHAN DATTA, AYYAKKANNU MANIVANNAN
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Patent number: 9947962Abstract: The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 and the precursors have a general formula of MxMo6Z8. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.Type: GrantFiled: July 8, 2014Date of Patent: April 17, 2018Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Partha Saha, Moni Kanchan Datta, Ayyakkannu Manivannan
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Publication number: 20180100219Abstract: The invention relates to biodegradable, metal alloy-containing compositions, methods for their preparation and applications for their use. The compositions include magnesium and other components, such as yttrium, calcium, silver, cerium, and zirconium; or zinc, silver, cerium, and zirconium; or aluminum, zinc, calcium, manganese, silver, yttrium; or strontium, calcium, zinc. The compositions are prepared by vacuum induction/crucible melting together the components and casting the melted mixture in a preheated mild steel/copper mold. In certain embodiments, the compositions of the invention are particularly useful for forming medical devices for implantation into a body of a patient.Type: ApplicationFiled: December 8, 2017Publication date: April 12, 2018Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, DA-TREN CHOU, DAEHO HONG, PARTHA SAHA
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Publication number: 20180047978Abstract: The invention relates to lithium-based battery systems and, more particularly, to electro-spinable solution compositions, electro-spun sulfur-polymer fibers, e.g., wires and yarns, and their use in preparing high performance sulfur mattes, e.g., electrodes, for lithium-sulfur batteries with potential applications in small-scale mobile devices. The sulfur-polymer fibers have nanoscale dimensions and yarn-like morphology. The sulfur-polymer fibers can be prepared by co-dissolving sulfur and polymer in a solvent for forming the electro-spinable solution, and electrospinning the solution. The electrospun fibers can be used to form a composite that includes alternating layers of the electrospun fibers and polymer on a current collector.Type: ApplicationFiled: March 14, 2016Publication date: February 15, 2018Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, PRASHANTH JAMPANI HANUMANTHA, BHARAT GATTU, PAVITHRA MURUGAVEL SHANTHI
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Patent number: 9863020Abstract: The invention relates to biodegradable, metal alloy-containing compositions, methods for their preparation and applications for their use. The compositions include magnesium and other components, such as yttrium, calcium, silver, cerium, and zirconium; or zinc, silver, cerium, and zirconium; or aluminum, zinc, calcium, manganese, silver, yttrium; or strontium, calcium, zinc. The compositions are prepared by vacuum induction/crucible melting together the components and casting the melted mixture in a preheated mild steel/copper mold. In certain embodiments, the compositions of the invention are particularly useful for forming medical devices for implantation into a body of a patient.Type: GrantFiled: October 28, 2016Date of Patent: January 9, 2018Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Da-Tren Chou, Daeho Hong, Partha Saha
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Publication number: 20170266346Abstract: 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: December 9, 2015Publication date: September 21, 2017Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, JINGYAO WU, OLEG VELIKOKHATNYI
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Publication number: 20170233879Abstract: 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: December 21, 2016Publication date: August 17, 2017Applicant: 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: 20170044645Abstract: The invention relates to biodegradable, metal alloy-containing compositions, methods for their preparation and applications for their use. The compositions include magnesium and other components, such as yttrium, calcium, silver, cerium, and zirconium; or zinc, silver, cerium, and zirconium; or aluminum, zinc, calcium, manganese, silver, yttrium; or strontium, calcium, zinc. The compositions are prepared by vacuum induction/crucible melting together the components and casting the melted mixture in a preheated mild steel/copper mold. In certain embodiments, the compositions of the invention are particularly useful for forming medical devices for implantation into a body of a patient.Type: ApplicationFiled: October 28, 2016Publication date: February 16, 2017Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: PRASHANT N. KUMTA, DA-TREN CHOU, DAEHO HONG, PARTHA SAHA
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Patent number: 9561497Abstract: The invention provides electro-catalyst compositions for an anode electrode of a 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 a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors. Furthermore, a thin film containing the compositions can be deposited onto a substrate to form the anode electrode.Type: GrantFiled: August 7, 2013Date of Patent: February 7, 2017Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Karan Sandeep Kadakia, Moni Kanchan Datta, Oleg Velikokhatnyi
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Patent number: 9510932Abstract: The invention relates to biodegradable, metal alloy-containing compositions, methods for their preparation and applications for their use. The compositions include magnesium and other components, such as yttrium, calcium, silver, cerium, and zirconium; or zinc, silver, cerium, and zirconium; or aluminum, zinc, calcium, manganese, silver, yttrium; or strontium, calcium, zinc. The compositions are prepared by vacuum induction/crucible melting together the components and casting the melted mixture in a preheated mild steel/copper mold. In certain embodiments, the compositions of the invention are particularly useful for forming medical devices for implantation into a body of a patient.Type: GrantFiled: October 5, 2012Date of Patent: December 6, 2016Assignee: University of Pittsburgh-Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Da-Tren Chou, Daeho Hong, Partha Saha
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Publication number: 20160053134Abstract: The invention relates to polyelectrolyte multilayer coatings and, methods for their preparation and application to substrates to enhance the bioactivity and corrosion protection of the substrates' surface. The invention is particularly suitable for coating substrates employed for medical applications, such as but not limited to medical implant devices for drug and/or biologics delivery in a patient. The substrate has a positive or negative charge. The polyelectrolyte multilayer coatings include at least a first polymer layer and a second polymer layer. The first polymer and second polymer have opposite charges. Each of the polymer layers is individually applied using a layer-by-layer such that an alternating charge multilayer coating is formed.Type: ApplicationFiled: April 3, 2014Publication date: February 25, 2016Applicant: UNIVERSITY OF PITTSBURG-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Sangeetha Kunjukunju, Nicole J. Ostrowski, Abhijit Roy, BOEUN BEE, Madhumati Ramanathan
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Publication number: 20150010832Abstract: The invention relates to Chevrel-phase materials and methods of preparing these materials utilizing a precursor approach. The Chevrel-phase materials are useful in assembling electrodes, e.g., cathodes, for use in electrochemical cells, such as rechargeable batteries. The Chevrel-phase materials have a general formula of Mo6Z8 and the precursors have a general formula of MxMo6Z8. The cathode containing the Chevrel-phase material in accordance with the invention can be combined with a magnesium-containing anode and an electrolyte.Type: ApplicationFiled: July 8, 2014Publication date: January 8, 2015Applicant: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Partha Saha, Moni Kanchan Datta, Ayyakkannu Manivannan
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Publication number: 20140248288Abstract: The invention relates to biodegradable, metal alloy-containing compositions, methods for their preparation and applications for their use. The compositions include magnesium and other components, such as yttrium, calcium, silver, cerium, and zirconium; or zinc, silver, cerium, and zirconium; or aluminum, zinc, calcium, manganese, silver, yttrium; or strontium, calcium, zinc. The compositions are prepared by vacuum induction/crucible melting together the components and casting the melted mixture in a preheated mild steel/copper mold. In certain embodiments, the compositions of the invention are particularly useful for forming medical devices for implantation into a body of a patient.Type: ApplicationFiled: October 5, 2012Publication date: September 4, 2014Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Da-Tren Chou, Daeho Hong, Partha Saha
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Publication number: 20140097277Abstract: 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: October 3, 2013Publication date: April 10, 2014Applicant: 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: 8658062Abstract: The present invention is related to nano-particle compositions, methods of their preparation and applications thereof. The nano-particle compositions include silicon-containing nano-particles, a graphite matrix, carbon nanotubes and an amorphous carbon interface formed between the silicon-containing nano-particles and the graphite matrix.Type: GrantFiled: September 22, 2009Date of Patent: February 25, 2014Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducationInventors: Prashant N. Kumta, Moni Kanchan Datta
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Publication number: 20140045678Abstract: The invention provides electro-catalyst compositions for an anode electrode of a 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 a surfactant approach or a sol gel approach. Further, the compositions are prepared using noble metal and non-noble metal precursors. Furthermore, a thin film containing the compositions can be deposited onto a substrate to form the anode electrode.Type: ApplicationFiled: August 7, 2013Publication date: February 13, 2014Applicant: University of Pittsburgh - of the Commonwealth System of Higher EducationInventors: PRASHANT N. KUMTA, Karan Sandeep Kadakia, Moni Kanchan Datta, Oleg Velikokhatnyi