Patents by Inventor Partha Saha
Partha Saha 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: 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: 11594753Abstract: 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 (Z=sulfur) or Mo6Z18-yZ2y (Z1=sulfur; Z2=selenium), and partially cuprated Cu1Mo6S8 as well as partially de-cuprated Cu1-xMgxMo6S8 and the precursors have a general formula of MxMo6Z8 or MxMo6Z18-yZ2y, M=Cu. 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: October 30, 2020Date of Patent: February 28, 2023Assignees: UNIVERSITY OF PITTSBURGH—OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, COMMONWEALTH SYSTEM OF HIGHER EDUCATIONInventors: Prashant N. Kumta, Partha Saha, Moni Kanchan Datta, Ayyakkannu Manivannan
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Patent number: 11580109Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: GrantFiled: May 22, 2020Date of Patent: February 14, 2023Assignee: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey Martynov, James Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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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: 11354315Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: GrantFiled: May 22, 2020Date of Patent: June 7, 2022Assignee: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey Martynov, James Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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Publication number: 20210242488Abstract: 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 (Z=sulfur) or Mo6Z18-yZ2y (Z1=sulfur; Z2=selenium), and partially cuprated Cu1Mo6S8 as well as partially de-cuprated Cu1-xMgxMo6S8 and the precursors have a general formula of MxMo6Z8 or MxMo6Z18-yZ2y, M=Cu. 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: October 30, 2020Publication date: August 5, 2021Applicant: 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: 20200387510Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: ApplicationFiled: May 22, 2020Publication date: December 10, 2020Applicant: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey Martynov, James Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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Publication number: 20200356566Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: ApplicationFiled: May 22, 2020Publication date: November 12, 2020Applicant: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey Martynov, James Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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Patent number: 10826114Abstract: 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: February 15, 2018Date of Patent: November 3, 2020Assignee: 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: 10789251Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: GrantFiled: August 28, 2015Date of Patent: September 29, 2020Assignee: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey V. Martynov, James S. Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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Patent number: 10664478Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: GrantFiled: July 3, 2014Date of Patent: May 26, 2020Assignee: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey V. Martynov, James S. Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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Patent number: 10664375Abstract: Method and apparatus for stress management in a searchable data service. The searchable data service may provide a searchable index to a backend data store, and an interface to build and query the searchable index, that enables client applications to search for and retrieve locators for stored entities in the backend data store. Embodiments of the searchable data service may implement a distributed stress management mechanism that may provide functionality including, but not limited to, the automated monitoring of critical resources, analysis of resource usage, and decisions on and performance of actions to keep resource usage within comfort zones. In one embodiment, in response to usage of a particular resource being detected as out of the comfort zone on a node, an action may be performed to transfer at least part of the resource usage for the local resource to another node that provides a similar resource.Type: GrantFiled: August 28, 2015Date of Patent: May 26, 2020Assignee: Amazon Technologies, Inc.Inventors: Patrick W. Ransil, Aleksey V. Martynov, James S. Larson, James R. Collette, Robert Wai-Chi Chu, Partha Saha
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Patent number: 10604827Abstract: 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: December 8, 2017Date of Patent: March 31, 2020Assignee: University of Pittsburgh—Of the Commonwealth System of Higher EducatiionInventors: Prashant N. Kumta, Da-Tren Chou, Daeho Hong, Partha Saha
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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: 10360809Abstract: A method and apparatus for utilizing a course skeleton for adaptive learning is provided. Based on student profile information and course goal information, a query is generated to dynamically determine which learning items should be presented to the student. The query, which is based on a particular learning goal, may differ from student to student, and therefore different students may be presented with different learning items to achieve the same learning goal. In addition, as new learning items is added to the learning item repository, the learning items returned by the query for a particular learning goal may change, even if the query used for the goal does not.Type: GrantFiled: June 10, 2013Date of Patent: July 23, 2019Assignee: APOLLO EDUCATION GROUP, INC.Inventors: Satish Menon, Jayakumar Muthukumarasamy, Partha Saha, Kurtis S. Taylor, James R. Utter
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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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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