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Virginia Tech Intellectual Properties Inc patents


Recent patent applications related to Virginia Tech Intellectual Properties Inc. Virginia Tech Intellectual Properties Inc is listed as an Agent/Assignee. Note: Virginia Tech Intellectual Properties Inc may have other listings under different names/spellings. We're not affiliated with Virginia Tech Intellectual Properties Inc, we're just tracking patents.

ARCHIVE: New 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "V" | Virginia Tech Intellectual Properties Inc-related inventors


Matrix transformer and winding structure

A matrix transformer particularly suited to large voltage step-down, high current applications achieves increased good current sharing uniformity or air gap and electrical characteristics and reduced or eliminating termination losses, core losses and winding losses with a unitary magnetic core structure featuring sheets of magnetic material and a two-dimensional array of pillars on which windings, oriented in opposite directions on pillars that are adjacent in orthogonal directions, can be formed or placed comprising metallization on or embedded in a printed circuit board (pcb) structure. Magnetic flux density is reduced by at least one-half by dividing the magnetic flux in each pillar into two paths of increased width in the sheets of magnetic material. ... Virginia Tech Intellectual Properties Inc

Critical-mode-based soft-switching techniques for three-phase bi-directional ac/dc converters

Critical-mode soft-switching techniques for a power converter are described. In one example, a power converter includes a converter electrically coupled between an alternating current (ac) power system and a direct current (dc) power system, where the converter includes a number of phase legs. ... Virginia Tech Intellectual Properties Inc

Immunotherapeutic methods using irreversible electroporation

Methods for treating tissue with irreversible electroporation and immunotherapy are described. The methods include placing a probe in tissue within a human body, wherein the probe has at least a first electrode, applying a plurality of electrical pulses through the first electrode and a second electrode, causing irreversible electroporation (ire) of the tissue within a target ablation zone, and administering one or more exogenous agents into the tissue within the target ablation zone or to the human, thereby stimulating or otherwise modulating an immune system response within the body.. ... Virginia Tech Intellectual Properties Inc

Irreversible electroporation using tissue vasculature to treat aberrant cell masses or create tissue scaffolds

The present invention relates to the field of medical treatment of diseases and disorders, as well as the field of biomedical engineering. Embodiments of the invention relate to the delivery of irreversible electroporation (ire) through the vasculature of organs to treat tumors embedded deep within the tissue or organ, or to decellularize organs to produce a scaffold from existing animal tissue with the existing vasculature intact. ... Virginia Tech Intellectual Properties Inc

Cooler with emi-limiting inductor

A power device package includes a dielectric substrate having an upper conductor layer and a lower conductor layer, a semiconductor die coupled to the upper conductor layer of the dielectric substrate via conductive adhesive, a cooler including a protruding hillock having a top surface and outer sides, the lower conductor layer of the dielectric substrate being coupled to the surface of the protruding hillock via an adhesive, and a magnetic material attached mateably around the protruding hillock. The magnetic material includes inner sides abutting the outer sides of the protruding hillock.. ... Virginia Tech Intellectual Properties Inc

Method for jointly adapting an ofdm waveform and the demodulator for interference mitigation and harsh channels

The present invention provides a method and system for a processing multicarrier signal to create a spectral correlation across multiple antennas. The system includes at least one transmitter adapted to create a plurality of symbols, each symbol representing one or more bits from a plurality of bitstreams. ... Virginia Tech Intellectual Properties Inc

Variable dc link converter and transformer for wide output voltage range applications

A variable direct current (dc) link power converter is described. In one example, the power converter includes a first converter stage configured to convert power from a power source to power at an intermediate link voltage and a second converter stage configured to convert the power at the intermediate link voltage to power for charging a battery. ... Virginia Tech Intellectual Properties Inc

Interface converter common mode voltage control

Aspects of interface converter common mode (cm) voltage control are described. In one embodiment, a bi-directional alternating current (ac) to direct current (dc) interface converter system includes an ac-dc converter between an ac power system and an interface link and a dc-dc converter between a dc power system and the interface link. ... Virginia Tech Intellectual Properties Inc

Polymeric materials and articles manufactured there from

A method for manufacturing a three dimensional object includes steps of: providing a digital description of the object as a set of voxels; sequentially creating an actual set of voxels corresponding to the digital set of voxels. At least one voxel comprises a polymer derived from: polyol and an ionic monomer. ... Virginia Tech Intellectual Properties Inc

Cleaning and dewatering fine coal

Fine coal is cleaned of its mineral matter impurities and dewatered by mixing the aqueous slurry containing both with a hydrophobic liquid, subjecting the mixture to a phase separation. The resulting hydrophobic liquid phase contains coal particles free of surface moisture and droplets of water stabilized by coal particles, while the aqueous phase contains the mineral matter. ... Virginia Tech Intellectual Properties Inc

Apparatus for dewatering and demineralization of fine particles

Hydrophobic particles such as coal and hydrophobized mineral fines can be readily separated from hydrophilic impurities by forming agglomerates in water using a hydrophobic liquids such as oil. The agglomerates of hydrophobic particles usually entrap large amounts of water, causing the moisture of the recovered hydrophobic particles to be excessively high. ... Virginia Tech Intellectual Properties Inc

Parallel devices having balanced switching current and power

A power circuit includes a power source for providing electrical power and two driving transistors being disposed in parallel and receiving electrical power from the power source. Each of the two driving transistors includes a gate terminal, a source connection, and a kelvin source connection. ... Virginia Tech Intellectual Properties Inc

Devices, systems, and methods for real-time monitoring of electrophysical effects during tissue treatment

Provided herein are devices, systems, and methods for monitoring lesion or treated area in a tissue during focal ablation or cell membrane disruption therapy. Provided herein are embodiments of an electrical conductivity sensor having an impedance sensor, where the impedance sensor can be configured to measure a low-frequency and a high-frequency impedance and a substrate, where the impedance sensor is coupled to the substrate. ... Virginia Tech Intellectual Properties Inc

Using power fingerprinting (pfp) to monitor the integrity and enhance security of computer based systems

Procedures are described for enhancing target system execution integrity determined by power fingerprinting (pfp): by integrating pfp into the detection phase of comprehensive defense-in-depth security; by deploying a network of pfp enabled nodes executing untrusted devices with predefined inputs forcing a specific state sequence and specific software execution; by embedding module identification information into synchronization signaling; by combining signals from different board elements; by using malware signatures to enhance pfp performance; by automatic characterization and signature extraction; by providing secure signature updates; by protecting against side-channel attacks; performing real-time integrity assessment in embedded platform by monitoring their dynamic power consumption and comparing it against signatures from trusted code, including pre-characterizing power consumption of the platform by concentrating on trace sections carrying the most information about the internal execution status; by using pfp from sequence of bit transitions to detect deviations from authorized execution of software in a digital processor.. . ... Virginia Tech Intellectual Properties Inc

10/12/17 / #20170294833

Multiphase coupled and integrated inductors with printed circuit board (pcb) windings for power factor correction (pfc) converters

A power factor correction (pfc) power converter, particularly of a multiphase totem-pole or other topology presenting a switching bridge that can potentially provide bi-directional power transfer control, reduces a nominal switching frequency and achieves zero voltage switching over an increased portion of a half line cycle by providing positive or inverse coupling of inductors in an inductor structure that can be formed of a multi-layer printed circuit board such that at least three different inductances are presented during each half line cycle period; allowing increased switching frequency and simplifying emi filtering arrangements. Parasitic capacitances can be balanced with additional coupled windings to reduce differential mode and common mode noise. ... Virginia Tech Intellectual Properties Inc

09/28/17 / #20170279471

Transmitting wideband signals through an electrically small antenna using antenna modulation

The present invention provides methods and devices to radiate wideband signals. The devices may include a tunable high q narrowband antenna having a plurality of ports including a feed port and a tuning port as well as a tuning element coupled to the tuning port of the antenna. ... Virginia Tech Intellectual Properties Inc

09/21/17 / #20170266438

Selective modulation of intracellular effects of cells using pulsed electric fields

A system and method for selectively treating aberrant cells such as cancer cells through administration of a train of electrical pulses is described. The pulse length and delay between successive pulses is optimized to produce effects on intracellular membrane potentials. ... Virginia Tech Intellectual Properties Inc

09/07/17 / #20170253712

Gelation, aerogel formation and reactions thereof to produce non-random functionalization of poly (aryl ether ketones)

The present invention provides a gel comprising a physical network formed of polymer chain crystallites interconnected by amorphous chain segments. Functionalization of the chain segments between the crystallites forms a blocky distribution of functionality along the chain whereby the functionalities are concentrated in groups consisting of one or more functionalities, separated by non-functionalized runs of crystallizable segments of the polymer. ... Virginia Tech Intellectual Properties Inc

08/31/17 / #20170246282

Multivalent brucella vaccine for protection against mycobacterial infections and methods of using the same

Provided herein is a multivalent brucella vaccine expressing at least one heterologous m. Tuberculosis antigen. ... Virginia Tech Intellectual Properties Inc

08/24/17 / #20170239576

Automated program synthesis from natural language for domain specific computing applications

Disclosed are various embodiments for automated program synthesis from a natural language for domain specific computing applications. In one embodiment, a natural language processor may be configured to parse words from a sentence of text formed in a natural language, such as english, following a grammatical structure for the natural language. ... Virginia Tech Intellectual Properties Inc

08/03/17 / #20170222483

Omnidirectional wireless power transfer system

In one example, an omnidirectional wireless power transfer system includes high frequency power generator configured to generate a supply of high frequency oscillating power, a number of transmitter-side resonant tank circuits electrically coupled to the high frequency power generator, a receptacle including a number of coils arranged for omnidirectional power transfer to an electronic device placed in the receptacle, and a controller configured to activate individual ones of the transmitter-side resonant tank circuits to wirelessly transmit power to the electronic device through near-field resonant inductive coupling. In one example, the receptacle can be embodied as a bowl, and the controller can activate individual ones of the transmitter-side resonant tank circuits over time to generate an omnidirectional field distribution for wireless power transmission. ... Virginia Tech Intellectual Properties Inc

07/27/17 / #20170209620

Irreversible electroporation to create tissue scaffolds

The present invention provides engineered tissue scaffolds, engineered tissues, and methods of using them. The scaffolds and tissues are derived from natural tissues and are created using non-thermal irreversible electroporation (ire). ... Virginia Tech Intellectual Properties Inc

07/13/17 / #20170197175

Energy-efficient extraction of acid gas from flue gases

An energy-efficient method of removing carbon dioxide, hydrogen sulfide, and other acid gases from a stream of flue gases. The flue stream is contacted with a predetermined sorbent system to remove acid gases from the flue stream. ... Virginia Tech Intellectual Properties Inc

07/06/17 / #20170189579

Irreversible electroporation to create tissue scaffolds

The present invention provides engineered tissue scaffolds, engineered tissues, and methods of using them. The scaffolds and tissues are derived from natural tissues and are created using non-thermal irreversible electroporation (ire). ... Virginia Tech Intellectual Properties Inc

06/22/17 / #20170179944

Power switch drivers with equalizers for paralleled switches

Capacitors connected between gate terminals of a plurality of parallel-connected power transistors are charged and discharged in each switching cycle to provide a plurality of power transistor control waveforms from a single gate driver waveform that equalize power losses/temperatures or steady-state currents among the plurality of power transistors. The capacitors are charged to different voltages by diverting current from one transistor driver by disabling another power transistor driver at different respective times in response to measured transient or steady state current or temperature or other operational parameter.. ... Virginia Tech Intellectual Properties Inc

06/22/17 / #20170173143

Live attenuated chimeric porcine circovirus vaccine

The present invention provides a novel chimeric porcine circovirus infectious dna clone and live attenuated chimeric virus with the pcv2, preferably of subtype pcv2b, capsid gene integrated into a non-pathogenic pcv1 virus genome. In a particular embodiment, the pcv2 capids gene is of subtype pcv2b, the predominant subtype circulating in pigs worldwide. ... Virginia Tech Intellectual Properties Inc

05/04/17 / #20170122286

Noise reduction surface treatment for airfoil

The present invention relates to airfoils having surface treatments to reduce trailing edge noise. The surface treatment is designed to reduce trailing edge noise by modifying the boundary layer turbulence as it approaches the trailing edge. ... Virginia Tech Intellectual Properties Inc

04/20/17 / #20170110880

Non-linear droop control

Aspects of non-linear droop control are described herein. In one embodiment, a system includes a first power converter or source configured to provide power to a bus, a second power converter or source configured to provide power to the bus, and a load electrically coupled to the bus. ... Virginia Tech Intellectual Properties Inc

04/13/17 / #20170101597

Method of separating and de-watering fine particles

A process for cleaning and dewatering hydrophobic particulate materials is presented. The process is performed in in two steps: 1) agglomeration of the hydrophobic particles in a first hydrophobic liquid/aqueous mixture; followed by 2) dispersion of the agglomerates in a second hydrophobic liquid to release the water trapped within the agglomerates along with the entrained hydrophilic particles.. ... Virginia Tech Intellectual Properties Inc

03/23/17 / #20170085280

Wireless communication device using time-variant antenna module

Embodiments of the present disclosure describe methods, apparatuses, and systems related to a wireless communication device using time-variant antenna. Other embodiments may be described and/or claimed.. ... Virginia Tech Intellectual Properties Inc

03/23/17 / #20170081477

Polybenzimidazoles and methods of making and using thereof

Disclosed are polybenzimidazoles containing sulfonyl groups. The polymers can be synthesized in eaton's reagent from 3,3′,4,4′-tetraaminodiphenylsulfone, which itself can be synthesized from 4,4′-dichlorodiphenylsulfone. ... Virginia Tech Intellectual Properties Inc

02/23/17 / #20170054294

Modular multilevel converter capacitor voltage ripple reduction

Aspects of capacitor voltage ripple reduction in modular multilevel converters are described herein. In one embodiment, a power converter system includes a modular multilevel converter (mmc) electrically coupled and configured to convert power between two different power systems. ... Virginia Tech Intellectual Properties Inc

02/23/17 / #20170051027

Keratin nanomaterials and methods of production

The present disclosure relates to keratin nanomaterials, methods for obtaining keratin nanomaterials, and biomaterials made from keratin nanomaterials. In particular, keratin nanomaterials comprising type i and type ii monomer pairs are disclosed as well as a method for obtaining keratin nanomaterials comprising obtaining a solution of keratin and processing the solution by ultrafiltration with buffer solution containing phosphate.. ... Virginia Tech Intellectual Properties Inc

02/16/17 / #20170045455

System and method for monitoring the health of dialysis patients

A system and method for monitoring the health of dialysis patients with raman spectroscopy measurements of one or more target analytes is described. The methods include irradiating one or more fluids of interest with light to produce one or more spectrum and detecting the spectrum with a detector. ... Virginia Tech Intellectual Properties Inc

02/09/17 / #20170040674

Plug-and-play time-variant antenna module for wireless communication devices

A plug-and-play antenna may be used with many different types of wireless communication devices. An antenna may be coupled to an impedance tuning component and a waveform generator. ... Virginia Tech Intellectual Properties Inc

01/26/17 / #20170026210

Wideband frequency shift modulation using transient state of antenna

Described herein are architectures, platforms and methods for implementing modulating a radiating signal of a high q antenna in order to transmit from one frequency to one or more different frequencies which may be in the same narrow band frequency spectrum or in a wide band frequency spectrum.. . ... Virginia Tech Intellectual Properties Inc








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