Patents by Inventor Vijay K. Varadan
Vijay K. Varadan 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: 20210404082Abstract: A process for the large scale manufacturing of vertically standing hybrid nanometer-scale structures of different geometries, including fractal architecture made of flexible materials, on a flexible substrate including textiles is disclosed. The nanometer-scale structures increase the surface area of the substrate. The nanometer-scale structures may be coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to temperature, humidity, pressure, atmospheric pressure, electromagnetic signals originating from biological or non-biological sources, volatile gases, and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the nanometer-scale structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.Type: ApplicationFiled: August 5, 2021Publication date: December 30, 2021Applicant: NANOWEAR INC.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Patent number: 11111593Abstract: A process for the large scale manufacturing of vertically standing hybrid nanometer-scale structures of different geometries, including fractal architecture made of flexible materials, on a flexible substrate including textiles is disclosed. The nanometer-scale structures increase the surface area of the substrate. The nanometer-scale structures may be coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to temperature, humidity, pressure, atmospheric pressure, electromagnetic signals originating from biological or non-biological sources, volatile gases, and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the nanometer-scale structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.Type: GrantFiled: January 14, 2016Date of Patent: September 7, 2021Assignee: Nanowear Inc.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Patent number: 11047051Abstract: A process for the large-scale manufacturing vertically standing hybrid nanometer scale structures of different geometries including fractal architecture of nanostructure within a nano/micro structures made of flexible materials, on a flexible substrate including textiles is disclosed. The structures increase the surface area of the substrate. The structures maybe coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to humidity, pressure, atmospheric pressure, and electromagnetic signals originating from biological or non-biological sources, volatile gases and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.Type: GrantFiled: October 18, 2018Date of Patent: June 29, 2021Assignee: NANOWEAR INC.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Patent number: 10932720Abstract: Sensors mounted on a textile include at least one of electrically conductive textile electrodes; single or multiple optically coupled infrared and red emitter and photodiode or photo transistor; and thin film or Resistive Temperature Detector (RTD). Textile electrodes, electrical connections, and electrical functionalization use at least one of nanoparticles, nanostructures, and mesostructures. Conductive thread, for electrical connections, may include a fiber core made from conductive materials such as but not limited to metals, alloys, and graphine structures, and a sheath of insulating materials such as but not limited to nylon, polyester, and cotton.Type: GrantFiled: August 3, 2017Date of Patent: March 2, 2021Assignee: NANOWEAR INC.Inventor: Vijay K. Varadan
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Patent number: 10653316Abstract: A roll-to-roll printing process for large scale manufacturing of nanosensor systems for sensing pathophysiological signals is disclosed. The roll-to-roll manufacturing process may include three processes to improve the throughput and to reduce the cost in manufacturing: fabrication of textile based nanosensors, printing conductive tracks, and integration of electronics. The wireless nanosensor systems can be used in different monitoring applications. The fabric sheet printed and integrated with the customized components can be used in a variety of different applications. The electronics in the nanosensor systems connect to remote severs through adhoc networks or cloud networks with standard communication protocols or non-standard customized protocols for remote health monitoring.Type: GrantFiled: January 28, 2019Date of Patent: May 19, 2020Assignee: NANOWEAR INC.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Publication number: 20190216320Abstract: A roll-to-roll printing process for large scale manufacturing of nanosensor systems for sensing pathophysiological signals is disclosed. The roll-to-roll manufacturing process may include three processes to improve the throughput and to reduce the cost in manufacturing: fabrication of textile based nanosensors, printing conductive tracks, and integration of electronics. The wireless nanosensor systems can be used in different monitoring applications. The fabric sheet printed and integrated with the customized components can be used in a variety of different applications. The electronics in the nanosensor systems connect to remote severs through adhoc networks or cloud networks with standard communication protocols or non-standard customized protocols for remote health monitoring.Type: ApplicationFiled: January 28, 2019Publication date: July 18, 2019Applicant: NANOWEAR INC.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Patent number: 10231623Abstract: A roll-to-roll printing process for large scale manufacturing of nanosensor systems for sensing pathophysiological signals is disclosed. The roll-to-roll manufacturing process may include three processes to improve the throughput and to reduce the cost in manufacturing: fabrication of textile based nanosensors, printing conductive tracks, and integration of electronics. The wireless nanosensor systems can be used in different monitoring applications. The fabric sheet printed and integrated with the customized components can be used in a variety of different applications. The electronics in the nanosensor systems connect to remote severs through adhoc networks or cloud networks with standard communication protocols or non-standard customized protocols for remote health monitoring.Type: GrantFiled: February 6, 2017Date of Patent: March 19, 2019Assignee: Nanowear Inc.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Publication number: 20190048473Abstract: A process for the large-scale manufacturing vertically standing hybrid nanometer scale structures of different geometries including fractal architecture of nanostructure within a nano/micro structures made of flexible materials, on a flexible substrate including textiles is disclosed. The structures increase the surface area of the substrate. The structures maybe coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to humidity, pressure, atmospheric pressure, and electromagnetic signals originating from biological or non-biological sources, volatile gases and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.Type: ApplicationFiled: October 18, 2018Publication date: February 14, 2019Applicant: NANOWEAR INC.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Patent number: 10131993Abstract: A process for the large-scale manufacturing vertically standing hybrid nanometer scale structures of different geometries including fractal architecture of nanostructure within a nano/micro structures made of flexible materials, on a flexible substrate including textiles is disclosed. The structures increase the surface area of the substrate. The structures maybe coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to humidity, pressure, atmospheric pressure, and electromagnetic signals originating from biological or non-biological sources, volatile gases and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.Type: GrantFiled: February 6, 2017Date of Patent: November 20, 2018Assignee: Nanowear, Inc.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Publication number: 20170354372Abstract: Sensors mounted on a textile include at least one of electrically conductive textile electrodes; single or multiple optically coupled infrared and red emitter and photodiode or photo transistor; and thin film or Resistive Temperature Detector (RTD). Textile electrodes, electrical connections, and electrical functionalization use at least one of nanoparticles, nanostructures, and mesostructures. Conductive thread, for electrical connections, may include a fiber core made from conductive materials such as but not limited to metals, alloys, and graphine structures, and a sheath of insulating materials such as but not limited to nylon, polyester, and cotton.Type: ApplicationFiled: August 3, 2017Publication date: December 14, 2017Inventors: Vijay K. Varadan, Pratyush RAI, Prashanth Shyam KUMAR, Gyanesh N. MATHUR, M. P. AGARWAL
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Publication number: 20160222539Abstract: A process for the large scale manufacturing of vertically standing hybrid nanometer-scale structures of different geometries, including fractal architecture made of flexible materials, on a flexible substrate including textiles is disclosed. The nanometer-scale structures increase the surface area of the substrate. The nanometer-scale structures may be coated with materials that are sensitive to various physical parameters or chemicals such as but not limited to temperature, humidity, pressure, atmospheric pressure, electromagnetic signals originating from biological or non-biological sources, volatile gases, and pH. The increased surface area achieved through the disclosed process is intended to improve the sensitivity of the sensors formed by coating of the nanometer-scale structure and substrate with a material which can be used to sense physical parameters and chemicals as listed previously.Type: ApplicationFiled: January 14, 2016Publication date: August 4, 2016Applicant: Nanowear Inc.Inventors: Vijay K. Varadan, Pratyush Rai, Se Chang Oh
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Publication number: 20160183835Abstract: A wearable remote electrophysiological monitoring system. The system includes a garment having at least one nanostructured, textile-integrated electrode attached thereto; a control module in electrical communication with the at least one nanostructured, textile-integrated sensor, and a remote computing system in communication with the control module.Type: ApplicationFiled: December 10, 2015Publication date: June 30, 2016Applicant: Nanowear Inc.Inventor: Vijay K. VARADAN
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Publication number: 20130281815Abstract: A system for cardiac monitoring of an individual. The system includes a garment having a plurality of nanostructured textile electrodes integrated therein, the electrodes arranged on the garment to record data for an ECG of the individual; a first controller electrically coupled to the plurality of electrodes, the controller including a wireless transmitter, the first controller being configured to collect the recorded data for the ECG from the plurality of electrodes and to cause the wireless transmitter to wirelessly transmit the recorded data; and a wireless receiving station including a wireless receiver and a second controller, the second controller configured to cause the wireless receiver to receive the recorded data transmitted by the wireless transmitter, analyze the recorded data for the ECG, analyze the recorded data, identify an abnormality in the ECG, and generate an alert if an abnormality in the ECG is identified.Type: ApplicationFiled: March 14, 2013Publication date: October 24, 2013Inventor: Vijay K. Varadan
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Publication number: 20130281795Abstract: A wearable remote electrophysiological monitoring system. The system includes a garment having at least one nanostructured, textile-integrated electrode attached thereto; a control module in electrical communication with the at least one nanostructured, textile-integrated sensor; and a remote computing system in communication with the control module.Type: ApplicationFiled: April 18, 2012Publication date: October 24, 2013Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSASInventor: Vijay K. Varadan
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Publication number: 20130211208Abstract: Sensors mounted on a textile include at least one of electrically conductive textile electrodes; single or multiple optically coupled infrared and red emitter and photodiode or photo transistor; and thin film or Resistive Temperature Detector (RTD). Textile electrodes, electrical connections, and electrical functionalization use at least one of nanoparticles, nanostructures, and mesostructures. Conductive thread, for electrical connections, may include a fiber core made from conductive materials such as but not limited to metals, alloys, and graphine structures, and a sheath of insulating materials such as but not limited to nylon, polyester, and cotton.Type: ApplicationFiled: October 22, 2012Publication date: August 15, 2013Inventors: Vijay K. VARADAN, Pratyush Rai, Prashanth Shyam Kumar, Gyanesh N. Mathur, M. P. Agarwal
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Patent number: 8348841Abstract: A wireless system for neurological and physiological monitoring of a patient. The system includes a patient monitoring unit having a headcap and a belt. The headcap includes a wireless communication module, an antenna, and an amplifier. The headcap further includes at least one of a biopotential electrode, a temperature sensor, a rotation sensor, an accelerometer, and an airflow sensor. The belt includes a respiration sensor comprising a carbon nanotube-based strain sensor. The system also includes a base receiver-server unit including a wireless receiving unit, a data storage unit, and a network communications unit. The system also includes a client monitoring unit which includes a processor, a network communications unit operably coupled to the processor, and a storage medium operably coupled to the processor, wherein the storage medium includes program instructions executable by the processor for receiving and processing data from the patient monitoring unit.Type: GrantFiled: April 9, 2010Date of Patent: January 8, 2013Assignee: The Board of Trustees of the University of ArkansasInventor: Vijay K. Varadan
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Publication number: 20110251469Abstract: A wireless system for neurological and physiological monitoring of a patient. The system includes a patient monitoring unit having a headcap and a belt. The headcap includes a wireless communication module, an antenna, and an amplifier. The headcap further includes at least one of a biopotential electrode, a temperature sensor, a rotation sensor, an accelerometer, and an airflow sensor. The belt includes a respiration sensor comprising a carbon nanotube-based strain sensor. The system also includes a base receiver-server unit including a wireless receiving unit, a data storage unit, and a network communications unit. The system also includes a client monitoring unit which includes a processor, a network communications unit operably coupled to the processor, and a storage medium operably coupled to the processor, wherein the storage medium includes program instructions executable by the processor for receiving and processing data from the patient monitoring unit.Type: ApplicationFiled: April 9, 2010Publication date: October 13, 2011Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSASInventor: Vijay K. Varadan
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Patent number: 6984332Abstract: A gyroscope comprises a piezoelectric substrate having a surface. Disposed on the surface are a resonator transducer, a pair of reflectors, a structure such as a metallic dot, and a sensor transducer. The resonator transducer creates a first surface acoustic wave on the surface. The pair of reflectors reflects the first surface acoustic wave to form a standing wave within a region of the surface between the pair of reflectors. The structure is disposed on the surface within the region, wherein a Coriolis force acting upon the structure creates a second surface acoustic wave. The sensor senses the second surface acoustic wave and provides an output indicative thereof.Type: GrantFiled: December 4, 2002Date of Patent: January 10, 2006Assignee: The Penn State Research FoundationInventors: Vijay K. Varadan, Pascal B Xavier, William D. Suh, Jose A Kollakompil, Vasundara V Varadan
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Publication number: 20030167841Abstract: A gyroscope comprises a piezoelectric substrate having a surface. Disposed on the surface are a resonator transducer, a pair of reflectors, a structure such as a metallic dot, and a sensor transducer. The resonator transducer creates a first surface acoustic wave on the surface. The pair of reflectors reflects the first surface acoustic wave to form a standing wave within a region of the surface between the pair of reflectors. The structure is disposed on the surface within the region, wherein a Coriolis force acting upon the structure creates a second surface acoustic wave. The sensor senses the second surface acoustic wave and provides an output indicative thereof.Type: ApplicationFiled: December 4, 2002Publication date: September 11, 2003Applicant: The Penn State Research FoundationInventors: Vijay K. Varadan, Pascal B. Xavier, William D. Suh, Jose A. Kollakompil, Vasundara V. Varadan
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Patent number: 6525691Abstract: A class of antennas that comprise an electrically conductive fractal pattern disposed on a dielectric substrate and are capable of construction in a size measured in centimeters as compared to previous antennas of the same class that measured in meters. One antenna style has a ground plane that is perpendicular to the substrate and another style has a ground plane that is parallel to the substrate. The substrate has a dielectric constant of in the range of about 10 to 600 or more and may be a ferroelectric, such as barium strontium titanate. A bias voltage applied across the substrate can tune the antenna for operation in a particular frequency range. The antenna can be made especially wideband by placing an absorbing material behind the substrate. The fractal pattern may be any fractal pattern, such as Hilbert curve, Koch curve, Sierpinski gasket and Sierpinski carpet.Type: GrantFiled: June 28, 2001Date of Patent: February 25, 2003Assignee: The Penn State Research FoundationInventors: Vijay K. Varadan, Kalarickaparambil Vinoy, Jose A. Kollakompil, Vasundara V. Varadan