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Drexel University Patents
Assignee:
Drexel University
Address:
Philadelphia, PA
No. of patents:
85
Patents:


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Patent Number Title Of Patent Date Issued
7449525 Multi-modal vinyl ester resins November 11, 2008
Multi-modal vinyl ester resins having one or more of good fracture toughness, good processing viscosity, and low volatile organic compound emissions are provided. The multi-modal vinyl ester resins are the reaction product of a liquid or crystalline epoxy and an amorphous, solid epox
7449045 Method of handling liquid non-ferrous metals with refractory material November 11, 2008
A method of handling liquid non-ferrous metals after smelting. The liquid metal is in contact with a solid refractory material, and in the absence of electrical currents passing through the liquid-metal-contacting surfaces. The solid material is Ti.sub.3SiC.sub.2. The liquid non-ferrous
7443083 Piezoelectric powered vehicles and motors October 28, 2008
One or more piezoelectric elements are employed to generate electrical energy from one or both of the mechanical energy of a moving part of a conventional engine or vehicle or the combustion energy of an internal combustion engine. The generated electrical energy can be stored and used
7421951 Piezoelectric stun projectile September 9, 2008
The present invention provides a non-lethal projectile for delivering an electric pulse to a target. In one aspect of the invention, the projectile utilizes a piezoelectric device and an electrical oscillating circuit in order to generate a pulse. In another aspect of the invention,
7419603 Water treatment method September 2, 2008
The present invention provides a physical water treatment (PWT) method and apparatus to treat liquid coolants. Electrodes (22, 24) are provided in a coolant stream (21), and an alternating voltage is applied across the electrodes (22, 24) to produce an electric field through the coolant.
7403815 Brain state recognition system July 22, 2008
An apparatus for assessing the brain state of a patient comprises at least one sensor to monitor at least one physiological variable, which provides at least one output signal. In addition, the apparatus for assessing the brain state of a patient comprises a computer processor for receiv
7349767 Method and system for intention estimation and operation assistance March 25, 2008
An intention estimation and operation assistance system for estimating an operator's intention and providing assistance to operation of a machine. Reference data, such as the operation of a plurality of hypothetical operators, is provided for comparison with the operation of a real o
7335345 Synthesis of water soluble nanocrystalline quantum dots and uses thereof February 26, 2008
An economic, direct synthetic method for producing water soluble QDs that are ready for bioconjugation is provided. The method can produce aqueous QDs with emission wavelengths varying from 400 nm to 700 nm. Highly luminescent metal sulfide (MS) QDs are produced via an aqueous synthesis
7305152 Attenuating counter-propagating optical phase modulation December 4, 2007
An attenuating counter-propagating (ACP) optical phase modulator introduces zero propagation delay. An optical field is modulated by an electromagnetic field. Within the ACP modulator, the optical field is propagated in an opposite direction to the propagation direction of the electr
7264762 Electrospinning ultrafine conductive polymeric fibers September 4, 2007
A process of making conductive polymeric fibers by electrospinning fibers from a blend of polymers dissolved in an organic solvent includes generating a high voltage electric field between oppositely charged polymer fluid in a glass syringe (4) with a capillary tip (5) and a metallic
7244360 Water treatment process July 17, 2007
The present invention provides a physical water treatment (PWT) method and apparatus to treat liquid coolants. Electrodes (22, 24) are provided in a coolant stream (21), and an alternating voltage is applied across the electrodes (22, 24) to produce an electric field through the coolant.
7214245 Associating hydrogels for nucleus pulposus replacement in intervertebral discs May 8, 2007
A prosthetic nucleus prepared from blends of polyvinylalcohol and polyvinyl pyrollidone or its copolymers for replacement of the nucleus pulposus in intervertebral discs is provided. Also provided are methods of replacing the nucleus pulposus and treating disc degeneration-associated
6989254 Direct encapsulation of biomacromolecules in surfactant templated mesoporous and nanoporous mate January 24, 2006
Biomacromolecules encapsulated or immobilized within mesoporous or nanoporous materials via surfactant-templated sol-gel reactions and methods for production of these encapsulated or immobilized biomacromolecules are provided.
6986873 Method of producing a metal-containing single-phase composition January 17, 2006
A method of producing a single-phase composition M.sub.n+1A.sub.zX.sub.n, primarily the production of the single-phase material Ti.sub.3SiC.sub.2, where n lies within a range of 0.8-3.2, where z lies within a range of 0.8-1.2, where M is at least one metal taken from the group of metals
6956206 Negative ion atmospheric pressure ionization and selected ion mass spectrometry using a 63NI ele October 18, 2005
Negative ion atmospheric pressure ionization mass spectrometers and selected ion mass spectrometers with a .sup.63 Ni ion source and a drift tube for reaction of a sample with electrons from the .sup.63 Ni ion source prior to analysis of a sample by mass spectrometry are provided. Al
6762023 Methods for identifying individuals at risk of developing osteoporosis July 13, 2004
Methods and kits for identifying individuals at risk of developing osteoporosis are provided. These methods and kits are based on detecting the presence of polymorphisms in the tumor necrosis factor alpha 2 receptor gene associated with low bone density and the risk of developing ost
6753311 Collagen or collagen-like peptide containing polymeric matrices June 22, 2004
Tissue engineering scaffolds comprising collagen or a collagen-like peptides incorporated within or between polymeric fibers and methods for their production are provided.
6725232 Database system for laboratory management and knowledge exchange April 20, 2004
A database system is provided that allows for navigation to outgoing links and incoming links. The database system is defined by a plurality of database-oriented projects. Each project has one or more parameters. Each project also has one or more instances thereof. An entry is associated
6696258 Mesoporous materials and methods of making the same February 24, 2004
Mesoporous materials and a method for making such materials is disclosed in which the mesoporous materials are made by forming an aqueous solution having an organometallic compound; adding a solution comprising a pore forming material selected from the group consisting of monomeric polyo
6689166 Hybrid nanofibril matrices for use as tissue engineering devices February 10, 2004
Tissue engineering devices with enhanced cell adhesion, cell proliferation and directional growth are provided which are prepared from nonwoven nanofibril matrices.
6554882 Rapid tooling sintering method and compositions therefor April 29, 2003
A rapid tooling method is provided for molding metal particles, ceramic particles or mixtures thereof directly from patterns comprising a meltable, soluble or decomposable substance and preferably formed by rapid prototyping technology, as well as particle compositions therefor. The
6518394 End-functionalized aniline-based oligomers, corrosion-resistant copolymers and methods of making February 11, 2003
Methods of forming low molecular weight oligomers of aniline-based compounds are provided as well as methods of forming varied molecular weight oligomers and polymers that are aniline-based which are end-functionalized and capable of being reacted with other monomeric species to form
6514209 Method of enhancing ultrasonic techniques via measurement of ultraharmonic signals February 4, 2003
Methods and apparatus for enhancing the capabilities of ultrasonic techniques through use of ultraharmonics are provided.
6497922 Method of applying corrosion, oxidation and/or wear-resistant coatings December 24, 2002
Corrosion-resistant, oxidation-resistant, and/or wear-resistant coatings are made of ternary ceramic compounds of the general formula (I):wherein M is at least one transition metal, X is an element selected from the group consisting of Si, Al, Ge, Pb, Sn, Ga, P, S, In, As, Tl and Cd, and
6484565 Single riser/single capillary viscometer using mass detection or column height detection November 26, 2002
An apparatus and method for determining the viscosity of a fluid over plural shear rates caused by a decreasing pressure differential by monitoring the movement of the fluid through a riser tube and a capillary tube. The movement can be monitored by detecting the changing weight of t
6461989 Process for forming 312 phase materials and process for sintering the same October 8, 2002
A process is provided for forming a material comprising an M.sub.3 X.sub.1 Z.sub.2 phase comprising the steps of: (a) providing a mixture of (i) at least one transition metal species, (ii) at least one co-metal species selected from the group consisting of aluminum species, germanium spe
6444864 Thermal plasma process for recovering monomers and high value carbons from polymeric materials September 3, 2002
The present invention relates to a method of recycling polymeric waste products into monomers and high value forms of carbon by pyrolytic conversion using an induction coupled RF plasma heated reactor.
6382824 Fiber optics illuminators and lighting system May 7, 2002
A fiber optics illuminator is described having a light source, an infrared filter, an optional optical lens, an optical fiber holder, all aligned on the optical axis, a housing, a fan drawing or blowing air, and optionally a color filter or colorwheel with an electric motor. This illumin
6350363 Electric field directed construction of diodes using free-standing three-dimensional components February 26, 2002
A process of making an electric current rectifying device using spatially coupled bipolar electrochemical deposition includes (a) placing at least two electrically conductive substrates, which may be a source of electrically conductive material, or a separate source of electrically c
6346182 Process of making bipolar electrodeposited catalysts and catalysts so made February 12, 2002
This invention relates to a bipolar electrochemical process for toposelective electrodeposition of a catalytic substance on an electrically conductive particulate substrate to produce a catalyst, as well as to the catalyst so produced. The process comprises: (a) placing the conductiv
6339185 Plant termination sequence January 15, 2002
The present invention is directed to a Blec plant 3' sequence of SEQUENCE ID NO: 5. A method of transforming plants with a Blec 3' sequence is also within the scope of the present invention. The present invention is also directed to cells comprising a Blec 3' sequence, plasmids and vecto
6277304 Process for producing electroactive inorganic organic hybrid materials August 21, 2001
Hybrid materials are formed having a homogeneous distribution of a conductive organic polymer or copolymer in an inorganic matrix. The conductive organic polymer may be electronically conductive, e.g., polyaniline, or may be ionically conductive, e.g., sulfonated polystyrene. The ino
6239251 End-functionalized aniline-based oligomers, corrosion-resistant copolymers and methods of making May 29, 2001
Methods of forming low molecular weight oligomers of aniline-based compounds are provided as well as methods of forming varied molecular weight oligomers and polymers that are aniline-based which are end-functionalized and capable of being reacted with other monomeric species to form
6231969 Corrosion, oxidation and/or wear-resistant coatings May 15, 2001
Corrosion-resistant, oxidation-resistant, and/or wear-resistant coatings are made of ternary ceramic compounds of the general formula (I):wherein M is at least one transition metal, X is an element selected from the group consisting of Si, Al, Ge, Pb, Sn, Ga, P, S, In, As, Tl and Cd, and
6204669 Detection of defects in protective barriers March 20, 2001
The invention includes apparatus and method for detecting defects in various barrier materials including surgical gloves and food packaging. Voltage is applied across electrodes and a barrier material and the voltage measured and compared with voltage control measurements for the sam
6204493 Fault tolerant electric current regulator March 20, 2001
The present invention is a fault tolerant apparatus for regulating the flow of electricity. The apparatus comprises a light radiating circuit which includes a first light source for radiating a first light signal, a second light source for radiating a second light signal and a first ligh
6120669 Bipolar electrochemical connection of materials September 19, 2000
The present invention relates to a bipolar electrochemical process for toposelective electrodeposition of a substance on a substrate comprising (a) placing the substrate and at least one of the substance and a source of the substance into an environment capable of conducting electricity
6102958 Multiresolutional decision support system August 15, 2000
A process control system determines optimal trajectories (input controls) using multiresolutional analysis of acquired data. In contrast to conventional control systems, the present control system does not use a predetermined mathematical model or algorithm to define the process in t
6066269 Electroactive inorganic hybrid materials May 23, 2000
Hybrid materials are formed having a homogeneous distribution of a conductive organic polymer or copolymer in an inorganic matrix. The conductive organic polymer may be electronically conductive, e.g., polyaniline, or may be ionically conductive, e.g., sulfonated polystyrene. The ino
6013322 Surface treatment of 312 ternary ceramic materials and products thereof January 11, 2000
A ceramic material is surface treated by contacting the surface of a 312 ternary ceramic material with a surface-modifying compound selected from carburization agents, silicidation agents, nitridation agents and boronization agents, at an elevated temperature of at least about 600.de
5955143 Hollow polymer microcapsules and method of producing the same September 21, 1999
Hollow polymer microcapsules are made by the method of dissolving a film-forming polymer in a volatile nonaqueous solvent; dispersing into the polymer solution finely divided particles of a volatilizable solid core material; inducing formation of a solid polymer coating on the particulat
5942455 Synthesis of 312 phases and composites thereof August 24, 1999
Products having single phases or solid solutions of the formula M.sub.3 X.sub.1 Z.sub.2 wherein M is a transition metal, X is Si, Al or Ge and Z is B, C or N can be prepared by taking a powdered mixture containing M, X and Z to a temperature of about 1000.degree. C. to about 1800.degree.
5882561 Process for making a dense ceramic workpiece March 16, 1999
A dense ceramic workpiece is made by a process of combining a powdered 312 component, e.g., Ti.sub.3 SiC.sub.2, with a powdered component that is soluble in the 312 component, e.g., TiSi.sub.2 in Ti.sub.3 SiC.sub.2, forming the mixture into a green body, heating the green body under
5868966 Electroactive inorganic organic hybrid materials February 9, 1999
Hybrid materials are formed having a homogeneous distribution of a conductive organic polymer or copolymer in an inorganic matrix. The conductive organic polymer may be electronically conductive, e.g., polyaniline, or may be ionically conductive, e.g., sulfonated polystyrene. The ino
5824079 Swelling type copolymeric composite material with self-fixation characteristics October 20, 1998
A method of anchoring soft tissue to bone is provided comprising providing a mixture of a hydrophobic monomer and a hydrophilic monomer and a crosslinking agent to form a swellable copolymer, adding a soft tissue attachment element to the mixture, wherein a portion of the soft tissue
5795304 System and method for analyzing electrogastrophic signal August 18, 1998
A method and system for analyzing an electrogastrophic (EGG) signal are disclosed. Electrodes are positioned on abdominal skin of a subject adjacent a stomach thereof. The electrodes obtain the EGG signal produced by the stomach. An amplifier is connected to the electrodes, receives the
5789599 Aziridine compounds, methods of preparation and reactions thereof August 4, 1998
Novel N-sulfinyl-2-carboxyaziridine compounds and novel N-hydrogen-2-hydroxymethylaziridine compounds are provided. The asymmetric synthesis of N-sulfinylaziridines is readily accomplished in high diastereomeric purity and good yield by the Darzens-type reaction of the metal enolate
5755977 Continuous catalytic oxidation process May 26, 1998
A contaminated fluid such as water or a gas stream containing at least one organic contaminant is contacted in a continuous process with a particulate geothite catalyst in a reactor in the presence of hydrogen peroxide or ozone or both to decompose the organic contaminants.
5744334 Plant promoter useful for directing the expression of foreign proteins to the plant epidermis April 28, 1998
The present invention is directed to a Blec plant promoter sequence of SEQUENCE ID NO: 1. A method of transforming plants with a Blec promoter-gene construct is also within the scope of the present invention. The present invention is also directed to cells comprising a Blec promoter-
5725778 Current driver for electronic descaling March 10, 1998
An electronic descaling system to prevent or remove mineral deposits by exposing moving fluids to magnetic and electric fields includes an improved power supply. In particular, the power supply adapts to the varying length, diameter and impedance of attached coil and cable combinatio
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