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Worcester Polytechnic Institute Patents
Assignee:
Worcester Polytechnic Institute
Address:
Worcester, MA
No. of patents:
61
Patents:


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Patent Number Title Of Patent Date Issued
8581975 Infrared defect detection system and method for the evaluation of powdermetallic compacts November 12, 2013
A pulsed thermography defect detection apparatus including active and passive infrared (IR) thermography for non-destructive testing (NDT) of powdermetallic (P/M) components for on-line and off-line inspection.
8284711 Apparatus and methods for addressable communication using voice-grade radios October 9, 2012
The invention relates to methods and apparatus for conducting directed communication using voice-grade radios. The methods and apparatus can be used to form a packet-switched wireless network using legacy analog transceivers, providing, e.g., both data and voice-over-Internet Protocol
8274136 Semiconductor patch antenna September 25, 2012
A semiconductor patch antenna for microwave radiation having a wide pin-junction or pn-junction with the depletion region or embodiments having a separating buried oxide (SiO.sub.2) layer between p- and n-doped regions as the natural resonator volume. Embodiments that do not include
8246559 Two degree of freedom powered orthosis August 21, 2012
Weakened and restricted limb movement is aided by powered orthosis having one or more independent dimensions of controlled movement and a control system.
8221324 Reconfigurable wireless ultrasound diagnostic system July 17, 2012
An untethered ultrasound imaging system having selectable command control and wireless component connection and image transmission. Ultrasound data collected by the ultrasound system can be augmented with additional sensor data.
8147428 Device and method for quantifying edema April 3, 2012
The preferred embodiments of the present invention are directed at a device that provides a reliable, accurate and quantifiable measure of a patient's edema. The device improves on the current method of digital manipulation by evaluating the pitting phenomena in a user-independent ma
8114664 Scalable wall bioreactor for culture of plant and animal tissues February 14, 2012
A flexible wall bioreactor is described that uses a small droplet size mist unit, a lower rate ambient air flow rate, and a flexible wall culture chamber to provide an environment that allows for the growth of dense root matrix, shoot cultures, and 2 and 3 dimensional animal tissues.
8076125 Imagewise patterning of films and devices comprising the same December 13, 2011
The present invention is directed, at least in part, to methods for imagewise patterning of a surface. Such patterned surfaces can be used, e.g., in microfluidic devices. Accordingly, the present invention is also directed, at least in part, to nanopatterned devices which include a m
8005486 Precise node localization in sensor ad-hoc networks August 23, 2011
Methods and systems for configuring ad-hoc networks, especially a self-configuring wireless sensor networks, are described. The network has an initial number of anchors with known positions that broadcast a signal. The signals are received by distributed nodes whose position is not y
7935309 Multi-transduction mechanism based microfluidic analyte sensors May 3, 2011
In various aspects are provided a microfluidic and/or nanofluidic sensor that can provide an indication of the reliability of its measurement of the presence of an analyte in a sample under investigation, an analyte concentration in the sample under investigation, or both. The provided
7896807 Multi-channel electrophysiologic signal data acquisition system on an integrated circuit March 1, 2011
A physiologic data acquisition system includes an analog input, a sigma-delta front end signal conditioning circuit adapted to subtract out DC and low frequency interfering signals from and amplify the analog input before analog to digital conversion. The system can be programmed to
7751984 Image-based computational mechanical analysis and indexing for cardiovascular diseases July 6, 2010
A method and a computer system, for providing an assessment for disease status of a disease, such as a cardiovascular disease, employ construction of image-based 3D computational model of an organ representative of the disease status; computationally obtaining a certain mechanical di
7727596 Method for fabricating a composite gas separation module June 1, 2010
A method for fabricating a composite gas separation module includes depositing a preactivated powder over a porous substrate; depositing a binder metal onto the preactivated powder; and depositing a dense gas-selective membrane to overlie the preactivated powder and binder metal, the
7513962 Alloy substantially free of dendrites and method of forming the same April 7, 2009
Described herein are alloys substantially free of dendrites. A method includes forming an alloy substantially free of dendrites. A superheated alloy is cooled to form a nucleated alloy. The temperature of the nucleated alloy is controlled to prevent the nuclei from melting. The nucle
7390536 Method for fabricating composite gas separation modules June 24, 2008
The present invention relates to a method for fabricating a composite gas separation module and to gas separation modules formed by the method. In one embodiment, the method for fabricating a composite gas separation module includes depositing a first material on a porous substrate,
7326526 Films with photoresponsive wettability February 5, 2008
In various aspects, the present invention provides substantially monolayer thick molecular films with photoresponsive wettability, the molecules of said films comprising a photochromic molecule coordinated to a metal atom, which is coordinated to an organic tethering molecule, surface
7292189 Methods and apparatus for high resolution positioning November 6, 2007
The invention relates to a method of signal analysis that determines the location of a transmitter and to devices that implement the method. The method includes receiving by at least three receivers, from a transmitter, a first continuous-time signal having a first channel. The first
7255726 Composite gas separation modules having high Tamman temperature intermediate layers August 14, 2007
A composite gas separation module includes a porous metal substrate; an intermediate layer that includes a powder having a Tamman temperature higher than the Tamman temperature of the porous metal substrate and wherein the intermediate layer overlies the porous metal substrate; and a
7214538 Device and method for the determination of lithium ion concentration in a biological fluid May 8, 2007
The present invention relates to a novel device and method for the detection of lithium ions in a biological fluid. In a preferred embodiment, the present invention provides a novel compound and a optical sensor which incorporates said compound for the detection of lithium ions. Addi
7201210 Casting of aluminum based wrought alloys and aluminum based casting alloys April 10, 2007
Preferred embodiments of the present invention include methods that allow for casting alloys, and preferentially casting wrought alloys to circumvent problems such as, for example, hot tearing. Preferred embodiments of the present invention provide for alloys having predominantly sph
7175694 Composite gas separation modules having intermediate porous metal layers February 13, 2007
The present invention relates to a composite gas separation module and to methods for fabricating a composite gas separation module. The present invention also relates to methods for selectively separating hydrogen gas from a hydrogen gas-containing gaseous stream. In one embodiment, the
7172644 Method for curing defects in the fabrication of a composite gas separation module February 6, 2007
The present invention relates to a method for curing a defect in the fabrication of a composite gas separation module and to composite gas separation modules formed by a process that includes the method. The present invention also relates to a method for selectively separating hydrog
7084630 Multi-modal RF coil for magnetic resonance imaging August 1, 2006
Multi-modal coils for coupling MRI RF signals from an anatomical region(s) to be imaged. The coil includes a segmented annular base ring conductor including a plurality of capacitances disposed between the segments, and at least one arcuate conductor symmetrically connected at each end t
7079025 Reconfigurable geolocation system July 18, 2006
A portable reconfigurable geolocation system is provided. The system includes a portable user node and one or more portable pseudolite nodes in communication one another and with the user node. Each of the user nodes and pseudolite nodes includes a transmitter that generates a signal
7069287 Method for efficient computation of odd characteristic extension fields June 27, 2006
A method for implementing an elliptic curve or discrete logarithm cryptosystem on inexpensive microprocessors is disclosed which provides for advantageous finite field computational performance on microprocessors having limited computational capabilities. The method can be employed w
7068054 Real-time carbon sensor for measuring concentration profiles in carburized steel June 27, 2006
An alloy solute sensor probe, measurement system and measurement method are disclosed for directly measuring solute concentration profiles in conductive material components at elevated processing temperatures. The disclosed device and method permit direct, real-time non-destructive m
6962245 Variable force energy dissipater and decelerator November 8, 2005
Tunable pull-through energy attenuator and decelerator devices is disclosed which provide for variable force-time profiles, deceleration and kinetic energy attenuation of moving objects so as to prevent damage or injury to impacting objects, vehicles or persons. The device employs either
6902720 Cyclic peptide structures for molecular scale electronic and photonic devices June 7, 2005
The present invention discloses a family of cyclic peptide monomers and supramolecular cyclic peptide structures comprising chromophore residues which possess electronic and electro-optic properties for producing molecular scale electronic and photonic devices made from such materials.
6893716 Non-covalent assembly of multilayer thin film supramolecular structures May 17, 2005
Self-assembled monolayers and multilayer thin film structures were assembled from multiple components that were linked non-covalently by metal-ligand complexation. Non-covalently assembled multicomponent films assembly my the present method obviate problems associated with the covale
6869586 Method of preparing metal containing compounds using hydrodynamic cavitation March 22, 2005
A process for the preparation of nanostructured materials in high phase purities using cavitation is disclosed. The method comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamber consists of a first element
6829269 Systems and methods using phonon mediated intersubband laser December 7, 2004
The present invention is directed to the development of compact, coherent sources emitting in the terahertz frequency region using interface phonons. In accordance with a preferred embodiment, a semiconductor heterostructure light emitting device includes a quantum cascade structure
6746595 Ammonium ionophore, an ammonium ion selective matrix, an ammonium ion-selective sensor, and a me June 8, 2004
An ammonium selective ionophore for use in ion selective electrodes.
6693443 Systems for detecting and measuring inclusions February 17, 2004
The present invention relates to systems of methods of detecting and measuring inclusions in liquid metals. More particularly, non-metallic inclusions having a conductivity level different from the liquid metal melt are forced to migrate and are collected on a measurement surface usi
6660526 Potassium fluoroionophore December 9, 2003
A fluoroionophore for the fluorescent detection of potassium ions.
6637971 Reusable high molecular weight/high density polyethylene guardrail October 28, 2003
The present invention provides a reusable high molecular weight, high density polyethylene guardrail designed for economical construction and rapid replacement of the elements comprising the guardrail system. This guardrail system is energy absorbing and comprises a plurality of stan
6590200 Systems for detecting measuring inclusions July 8, 2003
The present invention relates to systems of methods of detecting and measuring inclusions in liquid metals. More particularly, non-metallic inclusions having a conductivity level different from the liquid metal melt are forced to migrate and are collected on a measurement surface usi
6589501 Method of preparing metal containing compounds using hydrodynamic cavitation July 8, 2003
A process for the preparation of nanostructured materials in high phase purities using cavitation is disclosed. The method comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamber consists of a first element
6365555 Method of preparing metal containing compounds using hydrodynamic cavitation April 2, 2002
A process for the preparation of nanostructured materials in high phase purities using cavitation is disclosed. The method comprises mixing a metal containing solution with a precipitating agent and passing the mixture into a cavitation chamber. The chamber consists of a first element
6252959 Method and system for point multiplication in elliptic curve cryptosystem June 26, 2001
A point doubling method for elliptic curve cryptosystems is disclosed in which 2.sup.k P=(X.sub.k, y.sub.k) is directly calculated from P=(x,y) without computing intermediate points such as 2P, 4P, etc. The advantage in this direct calculation technique is that the number of inverses in
6248682 Incorporation of zeolites into hybrid polymer matrices June 19, 2001
A family of innovative composite zeolite materials and methods for making the same are disclosed. Zeolites 3A and 13X have been incorporated into hybrid polysiloxane polymers to form composite materials which are useful as membranes for separating a variety of gaseous and liquid material
6218846 Multi-probe impedance measurement system and method for detection of flaws in conductive article April 17, 2001
An innovative multi-dimensional, low frequency, impedance measurement probe array, measurement system, and method are disclosed for detecting flaws in conductive articles. The device and method provide for contacting a conductive article with an multi-probe array of current and voltage
6152987 Hydrogen gas-extraction module and method of fabrication November 28, 2000
A hydrogen gas-extraction module includes an intermediate layer bonded between a porous metal substrate and a membrane layer that is selectively permeable to hydrogen. The metal substrate includes a substantial concentration of a first metal at a surface of the metal substrate, and t
5807272 Impedance spectroscopy system for ischemia monitoring and detection September 15, 1998
An impedance spectroscopy tissue status monitoring and measurement system is disclosed. The system uses a synthesizer to generates electrical signals of selected frequencies. An electrical current source is responsive to the synthesizer and generates electrical currents for transmiss
5787958 Method, casting pattern and apparatus for gasifying residue during metal casting with polymers August 4, 1998
This invention includes a method, a casting pattern, and an apparatus directed to gasifying residue during metal casting. The method for metal casting includes using a casting pattern that includes an additive that can react with a residue formed as the casting pattern degrades during
5766432 Method and device for eliminating electrode drift June 16, 1998
A pH-measuring method and device for monitoring and then correcting for electrode drift is provided. The device includes a pH-measuring electrode and more than one reference electrode. During operation, the pH-measuring device is place in contact with a sample. The pH value measured at e
5746741 External fixator system May 5, 1998
An external fixator system comprises a clamp adapted to couple a fixator pin to a connecting rod. The clamp includes a slot for transversely receiving the body of the connecting rod. The slot preferably includes a region of reduced width, providing interference between the clamp and the
5712091 Method of selecting genetically superior shrimp January 27, 1998
A method for the selection of shrimp having a genetically-transmitted favorable growth characteristic for improved aquacultured shrimp production. A genetic marker for the favorable characteristic is prepared by isolating Penaeus shrimp nuclear DNA by extraction with chloroform in th
5466646 Process for the preparation of solid state materials and said materials November 14, 1995
A process for the preparation of solid state materials such as catalysts, electrolytes, piezo electric materials and superconductors is disclosed. The process produces materials with high phase purity. Novel solid state materials having high phase purity are also disclosed.
5466646 Process for the preparation of solid state materials and said materials November 14, 1995
A process for the preparation of solid state materials such as catalysts, electrolytes, piezo electric materials and superconductors is disclosed. The process produces materials with high phase purity. Novel solid state materials having high phase purity are also disclosed.
5449374 Tissue spreading forceps September 12, 1995
A tissue spreading forceps for gripping and spreading tissue include two gripping members which are secured to each other by a spring and are rotatable in relation to each other about a pivot. Initial pressure to the spring causes the gripping members to close and grip tissue at two
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