Patents by Inventor James Mitchell

James Mitchell 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).

  • Reverse Osmosis Membranes Made with PFSA Ionomer and ePTFE
    Publication number: 20140068927
    Abstract: A method for forming a membrane includes a step of dissolving a lithium salt in a solution including an ionomer that includes protogenic groups to form a modified solution. A membrane is formed from the solution containing the lithium salt and the ionomer that includes protogenic groups. The membrane is dried and then contacted with water to form a plurality of pores therein.
    Type: Application
    Filed: September 12, 2012
    Publication date: March 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: Timothy J. Fuller, Lijun Zou, Ion C. Halalay, James Mitchell, Mark W. Verbrugge
  • PPS Electrode Reinforcing Material/Crack Mitigant
    Publication number: 20140045095
    Abstract: A metal electrode assembly for fuel cell applications includes a cathode catalyst layer, an anode catalyst layer, and an ion-conducting membrane disposed between the cathode catalyst layer and the anode catalyst layer. The cathode catalyst layer or the anode layer each independently including a catalyst composition and a first polymer wherein at least one of the cathode catalyst layer or the anode layer include a first polymer and polyphenylene sulfide-containing structures. A method for making a fuel cell catalyst layer is also provided.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Mitchell, Timothy J. Fuller
  • Imbibing PolyPhenyleneSulfide (PPS) and Sulfonated-PPS Fibers with Ionomer
    Publication number: 20140045093
    Abstract: A metal electrode assembly includes a cathode catalyst layer, an anode catalyst layer, and an ion conducting membrane disposed between the cathode catalyst layer and the anode catalyst layer. The ion conducting layer includes a polyphenylene sulfide mat with a first polymer imbibed therein. The polyphenylene sulfide mat includes the polyphenylene sulfide-containing structures. A method for forming the ion conducting layer is also provided.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Mitchell, Lijun Zou, Timothy J. Fuller
  • PPS Membrane Reinforcing Material
    Publication number: 20140045094
    Abstract: A metal electrode assembly for a fuel cell includes a cathode catalyst layer, an anode catalyst layer, and an ion-conducting membrane disposed between the cathode catalyst layer and the anode catalyst layer. The ion-conducting membrane includes a first polymer and polyphenylene sulfide-containing structures dispersed within the first polymer, the first polymer including protogenic groups. A method for making the ion-conducting membrane is also provided.
    Type: Application
    Filed: August 7, 2012
    Publication date: February 13, 2014
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Mitchell, Timothy J. Fuller
  • Limited play optical article
    Patent number: 8646106
    Abstract: An optical article for playback in a player includes a first file comprising a first control logic; and a second file comprising a second control logic. The first file is configured to direct the player to play a first content data stored on the optical article, when the first control logic is read by the player. The player is directed to read the second file if the player cannot read the first file. The second file is configured to direct the player to play a second content data stored on the article when the second control logic is read by the player. The optical article includes a mark containing an optical state change material disposed on at least a portion of the first file, wherein the mark is in one of a first optical state or a second optical state, and wherein the first control logic can be read only when the mark is in the second optical state.
    Type: Grant
    Filed: September 28, 2007
    Date of Patent: February 4, 2014
    Assignee: NBCUniversal Media, LLC
    Inventors: James Mitchell White, Marc Brian Wisnudel, Kasiraman Krishnan, Mark Rogers Johnson
  • Apparatus and methods for loading a drug eluting medical device
    Patent number: 8632846
    Abstract: Methods and apparatus are disclosed for loading a therapeutic substance or drug within a lumenal space of a hollow wire having a plurality of side openings along a length thereof that forms a hollow drug-eluting stent with a plurality of side drug delivery openings. Loading a drug within the lumenal space of the hollow stent includes a drug filling step, in which the drug is mixed with a solvent or dispersion medium. The lumenal space may be filled with the drug solution or suspension in a reverse fill process and/or a forward fill process. After the drug filling step, a solvent or dispersion medium extracting step is performed to extract the solvent or dispersion medium from within the lumenal space such that only the drug remains within the hollow stent. A stent cleaning step may be performed to an exterior surface of the hollow stent.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: January 21, 2014
    Assignee: Medtronic Vascular, Inc.
    Inventors: Salvador Avelar, James Mitchell
  • Novel PPS-S Membrane
    Publication number: 20130330653
    Abstract: A method for making hollow metal tubes includes a step combining a polyphenylene sulfide-containing resin with a water soluble carrier resin to form a resinous mixture. The resinous mixture is then extruded to form an extruded resinous mixture. The extruded resinous mixture includes polyphenylene sulfide-containing fibers within the carrier resin. The extruded resinous mixture is contacted (i.e., washed) with water to separate the polyphenylene sulfide-containing fibers from the carrier resin. The polyphenylene sulfide-containing fibers are then formed into a membrane.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: GM Global Technology Operations LLC
    Inventors: James Mitchell, Lijun Zou, Timothy J. Fuller, Gerald W. Fly
  • Pt Nanotubes
    Publication number: 20130327494
    Abstract: A method for making hollow metal tubes includes a step combining a polyphenylene sulfide-containing resin with a water soluble carrier resin to form a resinous mixture. The resinous mixture is then extruded to form an extruded resinous mixture. The extruded resinous mixture includes polyphenylene sulfide-containing fibers within the carrier resin. The extruded resinous mixture is contacted (i.e., washed) with water to separate the polyphenylene sulfide-containing fibers from the carrier resin. The polyphenylene sulfide-containing fibers are then coated with a metal layer. The hollow metal tubes are then formed by removing the polyphenylene sulfide-containing fibers.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Mitchell, Timothy J. Fuller, Lijun Zou
  • Sulfonated PPS Fuel Cell Electrode
    Publication number: 20130330655
    Abstract: A method for making a fibrous layer for fuel cell applications includes a step of combining a polyphenylene sulfide-containing resin with a water soluble carrier resin to form a resinous mixture. The resinous mixture is then shaped to form a shaped resinous mixture. The shaped resinous mixture includes polyphenylene sulfide-containing structures within the carrier resin. The shaped resinous mixture is contacted (i.e., washed) with water to separate the polyphenylene sulfide-containing structures from the carrier resin. Optional protogenic groups and then a catalyst are added to the polyphenylene sulfide-containing structures.
    Type: Application
    Filed: June 8, 2012
    Publication date: December 12, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Mitchell, Timothy J. Fuller, Ted Gacek
  • Diffusion Media and Method of Preparation
    Publication number: 20130320583
    Abstract: Resinous fibers of nanometer to micrometer width dimensions are drawn from a multi-component system by a melt extrusion process. The process includes a step of combining a fiber resin with a water-soluble carrier resin to form a resinous mixture. The resinous mixture is extruded to form an extruded resinous mixture, the extruded resinous mixture having strands of the fiber resin with the carrier resin. The extruded resinous mixture is then contacted with water to separate the strands of the fiber resin from the carrier resin. An electrically conductive fibrous sheet is then formed from the strands of fiber resin. The fibrous sheets are useful as diffusion layers in fuel cells.
    Type: Application
    Filed: May 30, 2012
    Publication date: December 5, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventors: James Mitchell, Timothy J. Fuller
  • Method and apparatus to provide a high availability solid state drive
    Patent number: 8589723
    Abstract: A method and apparatus to use Solid State Drives (SSD) in a high availability enterprise system is provided. Concurrent redundant paths are provided to the SSD to at least two storage controllers via a serial system bus using a non-storage bus protocol.
    Type: Grant
    Filed: December 22, 2010
    Date of Patent: November 19, 2013
    Assignee: Intel Corporation
    Inventors: Panakaj Kumar, James Mitchell
  • HEARING AID WITH IMPROVED COMPRESSION
    Publication number: 20130287236
    Abstract: A hearing aid includes a microphone for conversion of acoustic sound into an input audio signal, a signal processor for processing the input audio signal for generation of an output audio signal; and a transducer for conversion of the output audio signal into a signal to be received by a human, wherein the signal processor includes a compressor with a compressor input/output rule that is variable in response to a signal level of the input audio signal.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Inventor: James Mitchell Kates
  • APPARATUS AND METHODS FOR FILLING A DRUG ELUTING MEDICAL DEVICE VIA CAPILLARY ACTION
    Publication number: 20130284311
    Abstract: Methods and apparatus are disclosed for filling a therapeutic substance or drug within a hollow wire that forms a stent. The stent is placed within a chamber housing a fluid drug formulation. During filling, the chamber is maintained at or near the vapor-liquid equilibrium of the solvent of the fluid drug formulation. To fill the stent, a portion of the stent is placed into contact with the fluid drug formulation until a lumenal space defined by the hollow wire is filled with the fluid drug formulation via capillary action. After filling is complete, the stent is retracted such that the stent is no longer in contact with the fluid drug formulation. The solvent vapor pressure within the chamber is reduced to evaporate a solvent of the fluid drug formulation. A wicking means may control transfer of the fluid drug formulation into the stent.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: Medtronic Vascular, Inc.
    Inventors: Justin PETERSON, James Mitchell, Abby Schlichting, Nate Glucklich, Jose Traina, Rajen Kumar
  • APPARATUS AND METHODS FOR FILLING A DRUG ELUTING MEDICAL DEVICE VIA CAPILLARY ACTION
    Publication number: 20130284310
    Abstract: Methods and apparatus are disclosed for filling a therapeutic substance or drug within a hollow wire that forms a stent. The stent is placed within a chamber housing a fluid drug formulation. During filling, the chamber is maintained at or near the vapor-liquid equilibrium of the solvent of the fluid drug formulation. To fill the stent, a portion of the stent is placed into contact with the fluid drug formulation until a lumenal space defined by the hollow wire is filled with the fluid drug formulation via capillary action. After filling is complete, the stent is retracted such that the stent is no longer in contact with the fluid drug formulation. The solvent vapor pressure within the chamber is reduced to evaporate a solvent of the fluid drug formulation. A wicking means may control transfer of the fluid drug formulation into the stent.
    Type: Application
    Filed: April 26, 2012
    Publication date: October 31, 2013
    Applicant: Medtronic Vascular, Inc.
    Inventors: Justin Peterson, James Mitchell, Abby Schlichting, Nate Glucklich, Joseph Berglund, Ya Guo
  • Security policy flow down system
    Patent number: 8572678
    Abstract: A system and method are provided that distill an organization's information security plan into a detailed and unambiguous security object model. The developed security object model provides a visualization of complex relationships between individual elements and levels that is usable to carry into effect the organization's information security plan. Configuration control and a verifiable level of security compliance are provided through implementation of the organization's information security plan by the developed security object model. The developed security object model is hosted on a computing platform in communication with at least the organization's network to provide information security plan compliance, configuration control and gap analysis in a usable form to the organization.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: October 29, 2013
    Assignee: Lockheed Martin Corporation
    Inventors: Bruce Barnett, Scott Evans, Robert James Mitchell, Jr., Thomas Markham, Stephen Dill, Vincent Hannon, John Patrick Elliott, Andrew Crapo
  • MULTIPROCESSING TRANSACTION RECOVERY MANAGER
    Publication number: 20130275984
    Abstract: A multiprocessing transaction recovery manager, operable with a transactional application manager and a resource manager, comprises a threadsafety indicator for receiving and storing positive and non-positive threadsafety data of at least one transactional component managed by one of the transactional application manager and the resource manager; a commit protocol component for performing commit processing for the at least one transactional component; and a thread selector responsive to positive threadsafety data for selecting a single thread for the commit processing to be performed by the commit protocol component. The thread selector is further operable to select plural threads for the commit processing to be performed by the commit protocol component responsive to non-positive threadsafety data.
    Type: Application
    Filed: June 10, 2013
    Publication date: October 17, 2013
    Inventors: Ian James Mitchell, John Simon Tilling
  • HOLLOW DRUG-FILLED STENT AND METHOD OF FORMING HOLLOW DRUG-FILLED STENT
    Publication number: 20130274864
    Abstract: A stent is formed from a wire having an outer member, a radiopaque core member disposed within a portion of the outer member, and an annular lumen between the radiopaque core member and the outer member. A substance is disposed in the annular lumen to be eluted through at least one opening disposed through the outer member. A plurality of radiopaque core members are disposed within portions of the outer member and are separated by lumens defined by the inner surface of the outer member. The lumens and annular lumens are in fluid communication with each other. In a method for making the stent, a composite wire including an outer member, an intermediate member, and a core member is shaped into a stent pattern and processed to remove the intermediate member and portions of the radiopaque core member, without damaging the outer member.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Applicant: Medtronic Vascular, Inc.
    Inventors: Ryan BIENVENU, James Mitchell, Dustin Thompson
  • HOLLOW DRUG-FILLED STENT AND METHOD OF FORMING HOLLOW DURG-FILLED STENT
    Publication number: 20130274867
    Abstract: A stent is formed from a wire having an outer member, a radiopaque member lining at least a portion of the outer member inner surface, and a lumen defined by the outer member inner surface or the radiopaque member inner surface. A substance is disposed in the lumen to be eluted through at least one opening disposed through the outer member to the lumen. The radiopaque member may be substantially continuous along the length of the wire or disposed only along portions of the wire such as crowns. In a method for making the stent, a composite wire including an outer member, a radiopaque intermediate member, and a core member is shaped into a stent pattern and processed to remove the core member and optionally portions of the radiopaque intermediate member, without damaging the outer member.
    Type: Application
    Filed: April 13, 2012
    Publication date: October 17, 2013
    Applicant: Medtronic Vascular, Inc.
    Inventors: Ryan BIENVENU, James Mitchell, Dustin Thompson
  • Rubber Crack Mitigants in Polyelectrolyte Membranes
    Publication number: 20130260279
    Abstract: A membrane electrode assembly for a fuel cell includes an anode catalyst layer, a cathode catalyst layer, and an ion conducting membrane. The ion conducting membrane is interposed between the anode catalyst layer and the cathode catalyst layer. The ion conducting membrane includes an ion conducting polymer having sulfonic acid groups and rubber particulates. Characteristically, the rubber particulates have an average spatial dimension less than about 600 nanometers. A fuel cell incorporating the membrane electrode assembly is also provided.
    Type: Application
    Filed: April 3, 2012
    Publication date: October 3, 2013
    Applicant: GM GLOBAL TECHNOLOGY OPERATION LLC
    Inventors: Timothy J. Fuller, Lijun Zou, Michael R. Schoeneweiss, James Mitchell
  • MODIFIED AGAVE FOOD AND METHOD OF MAKING SAME
    Publication number: 20130251853
    Abstract: Embodiments of the present disclosure are directed to a method for making agave syrup, the method including, mashing the agave piñas; extracting the inulin from the piñas; monitoring the hydrolysis with an osmometer; hydrolyzing the inulin to create specific saccharide functionality; pH adjusting the syrup to promote and stop hydrolysis; and heating the syrup to a temperature sufficient to deactivate native enzymes.
    Type: Application
    Filed: March 25, 2013
    Publication date: September 26, 2013
    Inventor: James Mitchell