Patents by Inventor Christopher Griffith

Christopher Griffith 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).

  • Publication number: 20220292999
    Abstract: Aspects of the subject disclosure may include, for example, receiving employee performance data for a group of employees including a particular employee, the employee performance data including particular performance data for the particular employee, the employee performance data associated with key performance indicator (KPIs) for the group of employees including a particular KPI associated with the a task performed by the particular employee; determining, for a plurality of training courses, a probability of each training course being associated with improved performance by the group of employees for each KPI of the KPIs; producing a probability distribution and a confidence score, recommending, based on the probability distribution, one or more recommended training courses for the employee; exploring, based on the confidence score, training courses of the plurality of training courses having a relatively low confidence score; receiving subsequent performance data for a time period following completion of t
    Type: Application
    Filed: March 15, 2021
    Publication date: September 15, 2022
    Applicants: AT&T Intellectual Property I, L.P., AT&T Mobility II LLC
    Inventors: Matthew Kratzer, Gary Gadson, Justin Hone, Sean Griffith, Christopher Rebacz, Jonathan Remington, Antoine Diffloth, Arvind Shankar Prabhakar, Qiuying Jiang, Michael Lemen, Michael Maher, Aaron Thomas, David E. Patterson
  • Publication number: 20220290031
    Abstract: Described herein are aqueous based foams for use in drilling operations. The foams can be used in below bubble point drilling operations to control the migration of reservoir gases (e.g., hydrogen sulfide) to the surface.
    Type: Application
    Filed: August 14, 2020
    Publication date: September 15, 2022
    Inventors: Ruth Ellen HAHN, Varadarajan DWARAKANATH, Kerry SPILKER, Gregory A. WINSLOW, Sophany THACH, Gayani W. PINNAWALA, Christopher GRIFFITH, Harold Charles LINNEMEYER, Robert Neil TROTTER
  • Patent number: 11420720
    Abstract: An aircraft door controller 100 including a receiver 110 configured to receive a command 14 to move an aircraft door between an open position and a closed position relative to a door frame. The aircraft door controller 100 is configured to not store the command 14 when power to move the aircraft door between the open position and the closed position relative to the door frame is unavailable.
    Type: Grant
    Filed: May 15, 2018
    Date of Patent: August 23, 2022
    Assignee: Airbus Operations Limited
    Inventors: Mark Grufferty, Nicholas Elliott, Martin Griffith Rowlands, Christopher James Perkins
  • Patent number: 11414393
    Abstract: Aminoalcohol lipidoids are prepared by reacting an amine with an epoxide-terminated compound are described. Methods of preparing aminoalcohol lipidoids from commercially available starting materials are also provided. Aminoalcohol lipidoids may be prepared from racemic or stereochemically pure epoxides. Aminoalcohol lipidoids or salts forms thereof are preferably biodegradable and biocompatible and may be used in a variety of drug delivery systems. Given the amino moiety of these aminoalcohol lipidoid compounds, they are particularly suited for the delivery of polynucleotides. Complexes, micelles, liposomes or particles containing the inventive lipidoids and polynucleotide have been prepared. The inventive lipidoids may also be used in preparing microparticles for drug delivery. They are particularly useful in delivering labile agents given their ability to buffer the pH of their surroundings.
    Type: Grant
    Filed: October 14, 2020
    Date of Patent: August 16, 2022
    Assignee: Massachusetts Institute of Technology
    Inventors: Kerry Peter Mahon, Kevin Thomas Love, Christopher G. Levins, Kathryn Ann Whitehead, Robert S. Langer, Daniel Griffith Anderson
  • Patent number: 11371819
    Abstract: A packaging arrangement for 30 mm×173 mm ammunition rounds. The packaging arrangement has a heavy duty standoff device of defined height, which standoff device mounts a very high strength support plate and a heavy duty restraining plate. The support plate has through holes (of diameter slightly less than the rounds defined maximum diameter) to hold the rounds of in an upside down position and from sliding/moving. The height of the standoff device keeps the rounds from being able to touch the bottom of the metal box. The restraining plate has multiple recessed areas sized to accommodate the back ends of the said rounds. The packaging arrangement is lowered into a metal box with handles for carriage purposes. On top, there are Homosite filler pads, and the box accommodates a top lid.
    Type: Grant
    Filed: December 18, 2012
    Date of Patent: June 28, 2022
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Jason B. Runell, Ricardo Villela, Niral Patel, Alan Cohen, Christopher Griffith
  • Publication number: 20210222270
    Abstract: A process for recovering lithium phosphate and lithium sulfate from a lithium-bearing silicate is described. The process includes adding from 800 kg/t to 1600 kg/t of sulfuric acid to a slurry of the lithium-bearing silicate and from 40 kg/t to 600 kg/t of a source of fluoride to produce a leach mixture and heating said leach mixture. A lithium-bearing solution is then separated from the leach mixture and its pH is increased sequentially to pH 3.5 to 4, pH 5.5 to 6 then pH 10.5 to 11 to precipitate, respectively, a first, second and third set of impurities therefrom. The first, second and third sets of impurities are separated from the lithium-bearing solution and lime is added to maintain a soluble Ca concentration of at least 30 mg/L. The lithium-bearing solution is then softened by adding a two sequential amounts of phosphate to precipitate fluorapatite and apatite, respectively. A third amount of phosphate is added to produce a lithium phosphate precipitate which is then separated.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 22, 2021
    Applicants: LITHIUM AUSTRALIA NL, AUSTRALIAN NUCLEAR SCIENCE AND TECHNOLOGY ORGANISATION
    Inventors: Andrew NAPIER, Christopher GRIFFITH
  • Publication number: 20210206651
    Abstract: A process for recovering lithium phosphate and lithium sulfate from a lithium-bearing solution, such as a brine or pregnant process liquor is described. The process includes adding phosphate to the lithium-bearing solution to precipitate lithium phosphate and then separating the resulting lithium phosphate precipitate from the solution. The separated lithium phosphate precipitate is then digested in sulphuric acid to produce a digestion mixture from which a lithium sulfate precipitate is separated. An alkali metal hydroxide is added to the separated solution to produce an alkali metal phosphate solution and this is recycled for use as phosphate in the first step of the process.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 8, 2021
    Applicants: LITHIUM AUSTRALIA NL, AUSTRALIAN NUCLEAR SCIENCE AND TECHNOLOGY ORGANISATION
    Inventors: Andrew NAPIER, Christopher GRIFFITH
  • Publication number: 20210180155
    Abstract: The disclosure relates to processes for extracting lithium from an uncalcined lithium-bearing silicate and recovering a lithium salt therefrom. A slurry of the uncalcined lithium-bearing silicate and a caustic solution is heated in an autoclave to provide a Li-rich sodalite phase. The Li-rich sodalite phase is leached with a dilute acid to produce a lithium-rich pregnant liquor. Various subsequent processes to treat the lithium-rich pregnant liquor to recover a lithium salt, such as lithium phosphate, lithium carbonate, lithium sulphate or lithium hydroxide, are described.
    Type: Application
    Filed: July 24, 2019
    Publication date: June 17, 2021
    Applicants: LITHIUM AUSTRALIA NL, AUSTRALIAN NUCLEAR SCIENCE AND TECHNOLOGY ORGANISATION
    Inventors: Andrew NAPIER, Christopher GRIFFITH
  • Publication number: 20190374200
    Abstract: Handheld ultrasound devices and replaceable tips for such devices are provided. For example, a handheld ultrasound device comprises a handle and a tip that includes a sensor for transmitting and receiving ultrasound waves. The handle and the tip may be a single, integral, unit or the tip may be separable from the handle. In either embodiment, the handle and tip together are a fully self-contained unit. Also provided are handheld ultrasound sterile assemblies, comprising a handheld ultrasound device and a sheath that fully covers the device to provide a sterile barrier for the device. Further, tips for handheld ultrasound devices are provided. The tips may be a replaceable component of the handheld ultrasound devices. For example, the tips may be configured for one-time use, and the tip rather than the entire handheld ultrasound device may be replaced between procedures such that a new tip is used in a subsequent procedure.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 12, 2019
    Inventors: Nathan Christopher Griffith, Santiago Gallo, Basil Blythe Bonner, II, Parker Lee Aycock
  • Publication number: 20190374201
    Abstract: Handheld ultrasound devices and replaceable tips for such devices are provided. For example, a handheld ultrasound device comprises a handle and a tip that includes a sensor for transmitting and receiving ultrasound waves. The handle and the tip may be a single, integral, unit or the tip may be separable from the handle. In either embodiment, the handle and tip together are a fully self-contained unit. Also provided are handheld ultrasound sterile assemblies, comprising a handheld ultrasound device and a sheath that fully covers the device to provide a sterile barrier for the device. Further, tips for handheld ultrasound devices are provided. The tips may be a replaceable component of the handheld ultrasound devices. For example, the tips may be configured for one-time use, and the tip rather than the entire handheld ultrasound device may be replaced between procedures such that a new tip is used in a subsequent procedure.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 12, 2019
    Inventors: Nathan Christopher Griffith, Santiago Gallo, Basil Blythe Bonner, II, Parker Lee Aycock
  • Publication number: 20190374199
    Abstract: Handheld ultrasound devices and replaceable tips for such devices are provided. For example, a handheld ultrasound device comprises a handle and a tip that includes a sensor for transmitting and receiving ultrasound waves. The handle and the tip may be a single, integral, unit or the tip may be separable from the handle. In either embodiment, the handle and tip together are a fully self-contained unit. Also provided are handheld ultrasound sterile assemblies, comprising a handheld ultrasound device and a sheath that fully covers the device to provide a sterile barrier for the device. Further, tips for handheld ultrasound devices are provided. The tips may be a replaceable component of the handheld ultrasound devices. For example, the tips may be configured for one-time use, and the tip rather than the entire handheld ultrasound device may be replaced between procedures such that a new tip is used in a subsequent procedure.
    Type: Application
    Filed: December 14, 2018
    Publication date: December 12, 2019
    Inventors: Nathan Christopher Griffith, Santiago Gallo, Basil Blythe Bonner, II, Parker Lee Aycock
  • Patent number: 9968350
    Abstract: A blunted safety needle is provided, which includes a hollow needle having a sharp distal tip and a stylus having a blunted end. The stylus is positioned within at least a portion of the needle. After the needle is used to deliver or deploy a substance and/or a device, the blunted end of the stylus is positioned to extend through the sharp distal tip of the needle and un-releaseably lock into position, thereby providing a blunted safety needle assembly.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: May 15, 2018
    Assignee: Avent, Inc.
    Inventors: John Anthony Rotella, Nathan Christopher Griffith, Lanita Grayce Cox, Donald Jay McMichael
  • Patent number: 9808650
    Abstract: A method for brachytherapy in a lumpectomy cavity of a breast including, positioning a distal end of a brachytherapy device within the cavity, expanding an expandable surface portion located between proximal and distal ends of the device within the cavity, the source lumen tubes defining a curved configuration within the cavity; and positioning a source of radiation sequentially within one or more source lumens of the source lumen tubes according to a brachytherapy treatment plan. The device includes an inner tube, and a plurality of source lumen tubes located around the inner tube and including distal ends secured together with the inner tube at the distal end disposed within the body cavity, the source lumen tubes comprising proximal portions sufficiently long to extend outside the breast.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: November 7, 2017
    Assignee: Theragenics Corporation
    Inventors: Jack C. White, David Wesley Stephens, Amit Prakash Govil, Joshua J. Bergman, Nathan Christopher Griffith, Kyle Kevin Millage
  • Patent number: 9623260
    Abstract: A method for brachytherapy in a lumpectomy cavity of a breast including, positioning a distal end of a brachytherapy device within the cavity, expanding an expandable surface portion located between proximal and distal ends of the device within the cavity, the source lumen tubes defining a curved configuration within the cavity; and positioning a source of radiation sequentially within one or more source lumens of the source lumen tubes according to a brachytherapy treatment plan. The device includes an inner tube, and a plurality of source lumen tubes located around the inner tube and including distal ends secured together with the inner tube at the distal end disposed within the body cavity, the source lumen tubes comprising proximal portions sufficiently long to extend outside the breast.
    Type: Grant
    Filed: April 11, 2013
    Date of Patent: April 18, 2017
    Assignee: Theragenics Corporation
    Inventors: Jack C. White, David Wesley Stephens, Amit Prakash Govil, Joshua J. Bergman, Nathan Christopher Griffith, Kyle Kevin Millage
  • Publication number: 20160128686
    Abstract: A blunted safety needle is provided, which includes a hollow needle having a sharp distal tip and a stylus having a blunted end. The stylus is positioned within at least a portion of the needle. After the needle is used to deliver or deploy a substance and/or a device, the blunted end of the stylus is positioned to extend through the sharp distal tip of the needle and un-releaseably lock into position, thereby providing a blunted safety needle assembly.
    Type: Application
    Filed: January 19, 2016
    Publication date: May 12, 2016
    Inventors: John Anthony Rotella, Nathan Christopher Griffith, Lanita Grayce Cox, Donald Jay McMichael
  • Publication number: 20150306421
    Abstract: A method for brachytherapy in a lumpectomy cavity of a breast including, positioning a distal end of a brachytherapy device within the cavity, expanding an expandable surface portion located between proximal and distal ends of the device within the cavity, the source lumen tubes defining a curved configuration within the cavity; and positioning a source of radiation sequentially within one or more source lumens of the source lumen tubes according to a brachytherapy treatment plan. The device includes an inner tube, and a plurality of source lumen tubes located around the inner tube and including distal ends secured together with the inner tube at the distal end disposed within the body cavity, the source lumen tubes comprising proximal portions sufficiently long to extend outside the breast.
    Type: Application
    Filed: July 8, 2015
    Publication date: October 29, 2015
    Applicant: THERAGENICS CORPORATION
    Inventors: JACK C. WHITE, DAVID WESLEY STEPHENS, AMIT PRAKASH GOVIL, JOSHUA J. BERGMAN, NATHAN CHRISTOPHER GRIFFITH, KYLE KEVIN MILLAGE
  • Patent number: D754276
    Type: Grant
    Filed: September 29, 2014
    Date of Patent: April 19, 2016
    Assignee: The United States of America as Represented by the Secretary of the Army
    Inventors: Jason B. Runell, Ricardo Villela, Niral Patel, Alan Cohen, Christopher Griffith
  • Patent number: D835781
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: December 11, 2018
    Assignee: Avent, Inc.
    Inventor: Nathan Christopher Griffith
  • Patent number: D901697
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: November 10, 2020
    Assignee: Remington Medical, Inc.
    Inventors: Nathan Christopher Griffith, Santiago Gallo, Basil Blythe Bonner, II, Parker Lee Aycock
  • Patent number: D948058
    Type: Grant
    Filed: November 6, 2020
    Date of Patent: April 5, 2022
    Assignee: Remington Medical, Inc.
    Inventor: Nathan Christopher Griffith