Patents by Inventor John A. Hunt

John A. Hunt 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: 8203702
    Abstract: Method/system locate external articles using source, detector (PSD), entrance aperture, and magnifying/reducing afocal element—expanding FOR>90°, or refining precision. Between (1) source or detector and (2) aperture, at least one plural-axis-rotatable mirror addresses source/detector throughout FOR. ½- to 15-centimeter mirror enables ˜25 to ˜45 ?radian beam divergence. Aperture, afocal element, and mirror(s) define source-detector path. Mirror(s) rotate in refractory- (or air/magnetic-) bearing mount; or mirror array. Auxiliary optics illuminate mirror back, monitoring return to measure (null-balance feedback) angle. To optimize imaging, auxiliary radiation propagates via splitters toward array (paralleling measurement paths), then focusing on imaging detector. Focal quality is developed as a PSF, optimized vs. angle; stored results later recover optima. Mirror drive uses magnet(s) on mirror(s). “Piston” motion yields in-phase wavefronts, so array dimensions set diffraction limit.
    Type: Grant
    Filed: October 14, 2008
    Date of Patent: June 19, 2012
    Assignee: Areté Associates
    Inventors: David M. Kane, Kelly Hillman, Christopher Hornberg, John Hunt, Andrew E. Paul
  • Patent number: 8192362
    Abstract: A method of detecting cellular damage within a subject comprises transmitting low frequency ultrasound (20 MHz or below) into a selected site within the subject wherein the selected site has been exposed to a stress capable of causing cellular death at the selected site. At least a portion of ultrasound backscattered from the ultrasound transmitted into the selected site is received. The received backscattered ultrasound is compared to a control backscatter measurement. An increase or a decrease in intensity or spectral slope of the received backscattered ultrasound when compared to the control backscatter measurement indicates cellular death or damage at the selected site within the subject.
    Type: Grant
    Filed: June 15, 2006
    Date of Patent: June 5, 2012
    Assignee: Sunnybrook Health Sciences Centre
    Inventors: Michael Kolios, Gregory J. Czarnota, Michael D. Sherar, Adam Tunis, John Hunt
  • Publication number: 20120118288
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Application
    Filed: June 13, 2011
    Publication date: May 17, 2012
    Applicant: FISHER & PAYKEL HEALTHCARE LIMITED
    Inventors: PETER JOHN HUNT, MOHAMMAD THUDOR, DAVID WIXEY, STEPHEN WILLIAM McPHEE
  • Publication number: 20120053340
    Abstract: A salt of a compound of formula (I) may be made with methanesulfonic acid. The salt and salts with other acids may be prepared by recovering from methyl tert-butyl ether (MTBE).
    Type: Application
    Filed: November 2, 2011
    Publication date: March 1, 2012
    Applicant: BTG International Limited
    Inventor: Neil John Hunt
  • Patent number: 8076474
    Abstract: A salt of a compound of formula (I) may be made with methanesulfonic acid. The salt and salts with other acids may be prepared by recovering from methyl tert-butyl ether (MTBE).
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: December 13, 2011
    Assignee: BTG International Limited
    Inventor: Neil John Hunt
  • Patent number: 7962018
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Grant
    Filed: November 19, 2008
    Date of Patent: June 14, 2011
    Assignee: Fisher & Paykel Healthcare Limited
    Inventors: Peter John Hunt, Mohammad Thudor, David Wixey, Stephen William McPhee
  • Publication number: 20110098590
    Abstract: An apparatus for measuring a quantity of an analyte, such as an aldehyde, contained in a breath sample includes a breath collection device and a measurement device. The breath collection device includes a breath inlet area, a breath outlet area, and a reaction chamber. The reaction chamber can include a reagent that is colorimetrically reactive with one or more aldehydes. The measurement device includes a light emitting device and a light measuring device and is configured to provide a quantitative value indicative of the amount of aldehydes present in the breath sample.
    Type: Application
    Filed: October 26, 2010
    Publication date: April 28, 2011
    Inventors: Ian Garbutt, David Urman, John Hunt, Stephen H. Mastin, Wes Spiegel, Chris Marsh
  • Publication number: 20110077552
    Abstract: A biopsy device having a translating and rotating cutter is disclosed. The translational speed of the cutter is varied using a variable pitch member. The variable pitch member can include a shaft having a relatively coarse threaded portion for rapid cutter advance and a relatively finer threaded portion for cutter advance during tissue severing.
    Type: Application
    Filed: December 9, 2010
    Publication date: March 31, 2011
    Applicant: DEVICOR MEDICAL PRODUCTS, INC.
    Inventors: Bennie Thompson, Beth McCombs, John Hunt, John Kretcham, John A. Hibner
  • Patent number: 7871384
    Abstract: A biopsy device having a translating and rotating cutter is disclosed. The translational speed of the cutter is varied using a variable pitch member. The variable pitch member can include a shaft having a relatively coarse threaded portion for rapid cutter advance and a relatively finer threaded portion for cutter advance during tissue severing.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: January 18, 2011
    Assignee: Devicor Medical Products, Inc.
    Inventors: Bennie Thompson, Beth McCombs, John Hunt, John Kretcham, John A. Hibner
  • Publication number: 20100253350
    Abstract: A wireless magnetic resonance imaging scanner antenna assembly has a radio frequency antenna array having a number of RF antenna rungs, a microwave antenna array having a number of microwave antenna elements, and a number of antenna feeds. The rungs and elements are grouped together in feed subsets, each subset having at least one feed rung, one non-feed rung and associated microwave antenna elements. Signal transfers between a feed rung and a non-feed rung of a subset are made at a point on the feed rung, within a region of minimum potential.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: David William Huish, John Hunt
  • Publication number: 20100253354
    Abstract: An upconverter has a low noise amplifier, a two port mixer and an antenna. The two port mixer comprises a first port to receive from the low noise amplifier an amplified input signal to be upconverted and a second port to receive a local oscillator signal and to output the amplified, upconverted signal at upper and lower sideband frequencies. The low noise amplifier is coupled to the first port; and the antenna is coupled to the second port.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: Anthony Peter Hulbert, John Hunt
  • Publication number: 20100253349
    Abstract: A parametric amplifier device has a two port parametric amplifier, a DC voltage generator and a DC bias regulator. The bias regulator has a voltage regulator, an attenuator and a summer. Output voltages from the regulator and the attenuator are added in the summer.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: Peter Cork, Anthony Peter Hulbert, John Hunt
  • Publication number: 20100253351
    Abstract: A microwave antenna feed has a radio frequency trap and a number of microwave transmission lines. The radio frequency trap has co-planar ground and signal layers mounted on one surface of a substrate.
    Type: Application
    Filed: April 2, 2010
    Publication date: October 7, 2010
    Inventors: David William Huish, John Hunt
  • Publication number: 20100152437
    Abstract: A salt of a compound of formula (I) may be made with methanesulfonic acid. The salt and salts with other acids may be prepared by recovering from methyl tert-butyl ether (MTBE).
    Type: Application
    Filed: February 4, 2010
    Publication date: June 17, 2010
    Applicant: BTG International Limited
    Inventor: Neil John Hunt
  • Patent number: 7700766
    Abstract: A salt of a compound of formula (I) may be made with methanesulfonic acid. The salt and salts with other acids may be prepared by recovering from methyl tert-butyl ether (MTBE).
    Type: Grant
    Filed: August 23, 2005
    Date of Patent: April 20, 2010
    Assignee: BTG International Limited
    Inventor: Neil John Hunt
  • Publication number: 20100040661
    Abstract: Nanopatterned surfaces which provide for improved cell growth including improved stem cell differentiation. The patterned surfaces can comprise an array of fields of biologically active moieties and can be controlled by parameters which include the pitch between the fields and the size of the fields. Nanopatterning can be carried out with use of dip pen nanolithographic printing, microcontact printing, and nanoimprint lithography.
    Type: Application
    Filed: July 10, 2009
    Publication date: February 18, 2010
    Inventors: John A. Hunt, Judith M. Curran, Duncan Graham, Robert Stokes
  • Publication number: 20090105609
    Abstract: A biopsy device having a translating and rotating cutter is disclosed. The translational speed of the cutter is varied using a variable pitch member. The variable pitch member can include a shaft having a relatively coarse threaded portion for rapid cutter advance and a relatively finer threaded portion for cutter advance during tissue severing.
    Type: Application
    Filed: October 20, 2008
    Publication date: April 23, 2009
    Inventors: Bennie Thompson, Beth McCombs, John Hunt, John Kretcham, John A. Hibner
  • Publication number: 20090065002
    Abstract: A breathing assistance apparatus adapted to deliver humidified gases at a desired level of humidity to a patient including a humidifier and a heated conduit is disclosed. The humidifier includes a controller which controls the humidifier, or the humidifier and the heated conduit to deliver the gases to the patient at the required humidity or temperature, without the requirement for sensors in the gases stream. The controller uses information already available to the controller, without the requirement for additional information to be provided by sensors in the gases stream. This means the need for sensors in the gases stream is dispensed with. A significant benefit is achieved as sensors are not required in the conduit and thus the apparatus is simple and less bulky.
    Type: Application
    Filed: November 19, 2008
    Publication date: March 12, 2009
    Inventors: PETER JOHN HUNT, MOHAMMAD THUDOR, DAVID WIXEY, STEPHEN WILLIAM McPHEE
  • Publication number: 20080297907
    Abstract: A reflector device for reflecting light from an LED and the like is provided. The reflector device comprises a reflectant material and a three-dimensional reflector formed from the reflectant material with the reflector having a top and a base and the reflector being entirely free from seams from the top to the base.
    Type: Application
    Filed: April 10, 2008
    Publication date: December 4, 2008
    Inventors: Randall Howe, John Hunt, Rod Stillman
  • Publication number: 20070185205
    Abstract: The present invention relates to a method of treating asthma by raising the pH of the airways of an individual. The effect can be mediated directly by administering a pharmaceutically acceptable basic solution or alternatively, the effect can be mediated by enhancing the activity of glutaminase.
    Type: Application
    Filed: April 16, 2007
    Publication date: August 9, 2007
    Inventors: John Hunt, Benjamin Gaston