Patents by Inventor Mark G. Allen

Mark G. Allen 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).

  • Patent number: 7439723
    Abstract: The present invention determines the resonant frequency of a sensor by adjusting the phase and frequency of an energizing signal until the frequency of the energizing signal matches the resonant frequency of the sensor. The system energizes the sensor with a low duty cycle, gated burst of RF energy having a predetermined frequency or set of frequencies and a predetermined amplitude. The energizing signal is coupled to the sensor via magnetic coupling and induces a current in the sensor which oscillates at the resonant frequency of the sensor. The system receives the ring down response of the sensor via magnetic coupling and determines the resonant frequency of the sensor, which is used to calculate the measured physical parameter. The system uses a pair of phase locked loops to adjust the phase and the frequency of the energizing signal.
    Type: Grant
    Filed: May 14, 2007
    Date of Patent: October 21, 2008
    Assignee: CardioMEMS, Inc.
    Inventors: Mark G. Allen, Michael Ellis, Jason Kroh, Donald J. Miller
  • Publication number: 20080256041
    Abstract: A system and method links one or more disparate community awareness management (CAM) datasets for a community awareness program (CAP) with one or more spatial layers to create linked CAM datasets. One or more data attributes common to a CAM dataset and a spatial layer are identified, and the link is defined between the CAM dataset and the spatial layer. The spatial layer and the linked CAM dataset then may be queried using a single input query. Features from the spatial layer and features from the linked CAM dataset that match the query are generated for display. In one embodiment, a system and method manage CAP assets, transactions, interest areas for the CAP, and buffer areas for the CAP. An audience utility enables entering and maintaining audience data for the CAP. A journal utility enables making journal entries for one or more audience members, CAP assets, transactions, and/or other CAM data. A link document utility enables linking one or more documents to CAM data.
    Type: Application
    Filed: October 30, 2007
    Publication date: October 16, 2008
    Inventors: Mark G. ALLEN, Matthew L. BRUNETT, David L. WILKERSON
  • Patent number: 7409117
    Abstract: A gas species monitoring system includes a laser, a fiber amplifier configured to receive an input signal from the laser and generate an amplified signal, and a variable optical attenuation system configured to receive at least a portion of the amplified signal and generate an attenuated signal for delivery to a measurement point, where the measurement point includes a gaseous fluid. The system further includes a detector configured to receive and process a signal from the measurement point so as to obtain a measured signal that correlates with the presence of a gas species within the gaseous fluid at the measurement point, and a processor in communication with at least the variable optical attenuation system and the detector. The processor controls the variable optical attenuation system based upon the measured signal.
    Type: Grant
    Filed: January 31, 2005
    Date of Patent: August 5, 2008
    Assignees: American Air Liquide, Inc., Physical Sciences, Inc.
    Inventors: William A. Von Drasek, Shawn D. Wehe, Mark G. Allen
  • Patent number: 7344499
    Abstract: Microneedle devices are provided for controlled sampling of biological fluids in a minimally-invasive, painless, and convenient manner. The microneedle devices permit in vivo sensing or withdrawal of biological fluids from the body, particularly from or through the skin or other tissue barriers, with minimal or no damage, pain, or irritation to the tissue. The microneedle device includes one or more microneedles, preferably in a three-dimensional array, a substrate to which the microneedles are connected, and at least one collection chamber and/or sensor in communication with the microneedles. Preferred embodiments further include a means for inducing biological fluid to be drawn through the microneedles and into the collection chamber for analysis. In a preferred embodiment, this induction is accomplished by use of a pressure gradient, which can be created for example by selectively increasing the interior volume of the collection chamber, which includes an elastic or movable portion engaged to a rigid base.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: March 18, 2008
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark R. Prausnitz, Mark G. Allen, Inder-Jeet Gujral
  • Patent number: 7242569
    Abstract: Capacitors 10, 20, 40, 50, 70, 80) having a fluid dielectric material that is transported or undergoes a phase change are disclosed. The dielectric medium change results in a change in the total dielectric constant of the material between the electrodes (12, 14, 72, 74, 81, 82), thus changing the capacitance of the capacitors. Transporting or phase changing the dielectric fluids into and out of a the electric field of the capacitor, changes the effective dielectric constant and the capacitance of the capacitor.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: July 10, 2007
    Assignee: nGimat, Co.
    Inventors: Andrew T. Hunt, Mark G. Allen
  • Patent number: 7226439
    Abstract: Simple microneedle devices for delivery of drugs across or into biological tissue are provided, which permit drug delivery at clinically relevant rates across or into skin or other tissue barriers, with minimal or no damage, pain, or irritation to the tissue. The devices include a substrate to which a plurality of hollow microneedles are attached or integrated, and at least one reservoir, containing the drug, selectably in communication with the microneedles, wherein the volume or amount of drug to be delivered can be selectively altered. The reservoir can be formed of a deformable, preferably elastic, material. The device typically includes a means, such as a plunger, for compressing the reservoir to drive the drug from the reservoir through the microneedles. In one embodiment, the reservoir is a syringe or pump connected to the substrate.
    Type: Grant
    Filed: June 4, 2003
    Date of Patent: June 5, 2007
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark R. Prausnitz, Mark G. Allen, Inder-Jeet Gujral
  • Patent number: 7196666
    Abstract: A surface micromachined electromagnetically radiating antenna includes a coplanar waveguide on a ground plane coated substrate having a conductor path. The conductor path is coupled to a monopole conductor, which has a generally-cylindrical backbone erected vertically from the substrate and a metal layer deposited on the backbone at a predetermined thickness. The antenna may be fabricated by depositing an epoxy on the ground plane coated substrate to a predetermined depth and according to a pattern. The epoxy is exposed to an ultraviolet source that develops one or more columns according to the pattern. A seed layer of metal may be formed on the developed column. A conductive metal is electrodeposited over the column surface to produce the monopole antenna. Other antenna may be created by adding monopoles and/or conductive metal patches and/or strips that are positioned atop the monopoles and elevated from the substrate.
    Type: Grant
    Filed: June 6, 2005
    Date of Patent: March 27, 2007
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark G. Allen, Yong-Kyu Yoon, Jin-Woo Park, Yeun-Ho Joung, Florent Cros, Ioannis Papapolymerou, Emmanouil Tentzeris, Bo Pan
  • Patent number: 7145412
    Abstract: Electronic and optical (or photonic) devices with variable or switchable properties and methods used to form these devices, are disclosed. More specifically, the present invention involves forming layers of conductive material and dielectric material or materials with varying conductivity and indexes of refraction to form various electronic and optical devices. One such layer of adjustable material is formed by depositing epitaxial or reduced grain boundary barium strontium titanate on the C-plane of sapphire.
    Type: Grant
    Filed: August 24, 2001
    Date of Patent: December 5, 2006
    Assignee: n Gimat Co.
    Inventors: Andrew T. Hunt, Mark G. Allen, David Kiesling, Robert E. Schwerzel, Yongdong Jiang, Fe Alma Gladden, John Wegman, Zhiyong Zhao, Matthew Scott Vinson, J. Eric McEntyre, Scott Flanagan, Todd Polley, J. Stevenson Kenney
  • Patent number: 7115437
    Abstract: A micromachined structure having electrically isolated components is formed by thermomigrating a dopant through a substrate to form a doped region within the substrate. The doped region separates two portions of the substrate. The dopant is selected such that the doped region electrically isolates the two portions of the substrate from each other via junction isolation.
    Type: Grant
    Filed: September 8, 2004
    Date of Patent: October 3, 2006
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark G. Allen, Charles C. Chung
  • Patent number: 7088567
    Abstract: Capacitors (10,20,40,50,70,80) having a fluid dielectric material that is transported or undergoes a phase change are disclosed. The dielectric medium change results in a change in the total dielectric constant of the material between the electrodes (12, 14, 72, 74, 81, 82), thus changing the capacitance of the capacitors. Transporting or phase changing the dielectric fluids into and out of a the electric field of the capacitor, changes the effective dielectric constant and the capacitance of the capacitor.
    Type: Grant
    Filed: October 18, 2002
    Date of Patent: August 8, 2006
    Assignee: nGimat, Co.
    Inventors: Andrew T. Hunt, Mark G. Allen
  • Patent number: 7005645
    Abstract: An apparatus and method for simultaneous detection of N gas species through laser radiation attenuation techniques is disclosed. Each of the N species has a spectral absorption band. N laser sources operate at a wavelength ?N in a spectral absorption band separated by the cutoff wavelength for single-mode transmission. Each laser source corresponds to a gas species and transmits radiation through an optical fiber constructed and arranged to provide single-mode transmission with minimal power loss.
    Type: Grant
    Filed: November 14, 2002
    Date of Patent: February 28, 2006
    Assignees: Air Liquide America L.P., Physical Sciences, Inc.
    Inventors: William A. Von Drasek, David Sonnenfroh, Mark G. Allen, Joy Stafford-Evans
  • Patent number: 6975500
    Abstract: Capacitor material for use in forming capacitors, is disclosed. More specifically, the invention is directed to capacitors formed from this material that have one or more discrete electrodes (314), each electrode (314) being exposed to at least two thicknesses of dielectric material (300). These electrodes (314) are surrounded by wider insulative material (312) such that the material can be cut, or patterned into capacitors having specific values. A single electrode can form a small value capacitor while still providing a larger conductive area for attaching the capacitor to associated circuitry. The thin dielectric (310) can be a tunable material so that the capacitance can be varied with voltage. The tunability can be increased by adding thin electrodes that interact with direct current.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: December 13, 2005
    Assignee: nGimat Co.
    Inventors: Andrew T. Hunt, Mark G. Allen, David Kiesling
  • Publication number: 20040264107
    Abstract: Capacitors (10,20,40,50,70,80) having a fluid dielectric material that is transported or undergoes a phase change are disclosed. The dielectric medium change results in a change in the total dielectric constant of the material between the electrodes (12, 14, 72, 74, 81, 82), thus changing the capacitance of the capacitors. Transporting or phase changing the dielectric fluids into and out of a the electric field of the capacitor, changes the effective dielectric constant and the capacitance of the capacitor.
    Type: Application
    Filed: August 30, 2004
    Publication date: December 30, 2004
    Inventors: Andrew T. Hunt, Mark G. Allen
  • Publication number: 20040241401
    Abstract: Capacitor material for use in forming capacitors, is disclosed. More specifically, the invention is directed to capacitors formed from this material that have one or more discrete electrodes (314), each electrode (314) being exposed to at least two thicknesses of dielectric material (300). These electrodes (314) are surrounded by wider insulative material (312) such that the material can be cut, or patterned into capacitors having specific values. A single electrode can form a small value capacitor while still providing a larger conductive area for attaching the capacitor to associated circuitry. The thin dielectric (310) can be a tunable material so that the capacitance can be varied with voltage. The tunability can be increased by adding thin electrodes that interact with direct current.
    Type: Application
    Filed: November 5, 2003
    Publication date: December 2, 2004
    Inventors: Andrew T Hunt, Mark G Allen, David Kiesling
  • Patent number: 6809392
    Abstract: A micromachined structure having electrically isolated components is formed by thermomigrating a dopant through a substrate to form a doped region within the substrate. The doped region separates two portions of the substrate. The dopant is selected such that the doped region electrically isolates the two portions of the substrate from each other via junction isolation.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: October 26, 2004
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark G. Allen, Charles C. Chung
  • Patent number: 6743211
    Abstract: Microneedle devices and methods of use thereof are provided for the enhanced transport of molecules, including drugs and biological molecules, across tissue by improving the interaction of microneedles and a deformable, elastic biological barrier, such as human skin. The devices and methods act to (1) limit the elasticity, (2) adapt to the elasticity, (3) utilize alternate ways of creating the holes for the microneedles to penetrate the biological barrier, other than the simply direct pressure of the microneedle substrate to the barrier surface, or (4) any combination of these methods. In preferred embodiments for limiting the elasticity of skin, the microneedle device includes features suitable for stretching, pulling, or pinching the skin to present a more rigid, less deformable, surface in the area to which the microneedles are applied (i.e. penetrate).
    Type: Grant
    Filed: November 23, 1999
    Date of Patent: June 1, 2004
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark R. Prausnitz, Mark G. Allen, Sebastien Henry, Devin V. McAllister, Donald E. Ackley, Thomas Jackson
  • Publication number: 20040066250
    Abstract: Electronic and optical (or photonic) devices with variable or switchable properties and methods used to form these devices, are disclosed. More specifically, the present invention involves forming layers of conductive material and dielectric material or materials with varying conductivity and indexes of refraction to form various electronic and optical devices. One such layer of adjustable material is formed by depositing epitaxial or reduced grain boundary barium strontium titanate on the C-plane of sapphire.
    Type: Application
    Filed: July 24, 2003
    Publication date: April 8, 2004
    Inventors: Andrew T Hunt, Mark G Allen, David Kiesling, Robert E Schwerzel, Yongdong Jiang, Fe Alma Gladden, John Wegman, Zhiyong Zhao, Matthew Scott Vinson, J Eric McEntyre, Scott Flanagan, Todd Polley, J Stevenson Kenney
  • Publication number: 20040027575
    Abstract: A method to provide user selected tunability for multi-section lasers manufactured for the telecommunication industry is disclosed. Extending the tunability of the laser to be user selectable provides a means to use the technology in other applications such as gas sensing or optical component testing. The combination of the broad tuning range with rapid wavelength selection will permit a reduction in the number of DFB lasers used in multiplexed systems thereby reducing system cost and complexity.
    Type: Application
    Filed: January 29, 2003
    Publication date: February 12, 2004
    Inventors: William A. Von Drasek, Shawn D. Wehe, Mark G. Allen
  • Publication number: 20030208167
    Abstract: Simple microneedle devices for delivery of drugs across or into biological tissue are provided, which permit drug delivery at clinically relevant rates across or into skin or other tissue barriers, with minimal or no damage, pain, or irritation to the tissue. The devices include a substrate to which a plurality of hollow microneedles are attached or integrated, and at least one reservoir, containing the drug, selectably in communication with the microneedles, wherein the volume or amount of drug to be delivered can be selectively altered. The reservoir can be formed of a deformable, preferably elastic, material. The device typically includes a means, such as a plunger, for compressing the reservoir to drive the drug from the reservoir through the microneedles. In one embodiment, the reservoir is a syringe or pump connected to the substrate.
    Type: Application
    Filed: June 4, 2003
    Publication date: November 6, 2003
    Inventors: Mark R. Prausnitz, Mark G. Allen, Inder-Jeet Gujral
  • Patent number: 6611707
    Abstract: Simple microneedle devices for delivery of drugs across or into biological tissue are provided, which permit drug delivery at clinically relevant rates across or into skin or other tissue barriers, with minimal or no damage, pain, or irritation to the tissue. The devices include a substrate to which a plurality of hollow microneedles are attached or integrated, and at least one reservoir, containing the drug, selectably in communication with the microneedles, wherein the volume or amount of drug to be delivered can be selectively altered. The reservoir can be formed of a deformable, preferably elastic, material. The device typically includes a means, such as a plunger, for compressing the reservoir to drive the drug from the reservoir through the microneedles. In one embodiment, the reservoir is a syringe or pump connected to the substrate.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: August 26, 2003
    Assignee: Georgia Tech Research Corporation
    Inventors: Mark R. Prausnitz, Mark G. Allen, Inder-Jeet Gujral