Patents by Inventor Andrew David Johnson

Andrew David Johnson 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: 20240055550
    Abstract: The present disclosure relates to a layered structure comprising: a substrate comprising a p-type semiconductor material; a plurality of semiconductor layers, on the substrate, comprising at least one p-on-n junction; and a tunnel junction layer between the substrate and the plurality of semiconductor layers.
    Type: Application
    Filed: July 26, 2023
    Publication date: February 15, 2024
    Inventor: Andrew David Johnson
  • Patent number: 11626279
    Abstract: Described herein are low temperature processed high quality silicon containing films. Also disclosed are methods of forming silicon containing films at low temperatures. In one aspect, there are provided silicon-containing film having a thickness of about 2 nm to about 200 nm and a density of about 2.2 g/cm3 or greater wherein the silicon-containing thin film is deposited by a deposition process selected from a group consisting of chemical vapor deposition (CVD), plasma enhanced chemical vapor deposition (PECVD), cyclic chemical vapor deposition (CCVD), plasma enhanced cyclic chemical vapor deposition (PECCVD, atomic layer deposition (ALD), and plasma enhanced atomic layer deposition (PEALD), and the vapor deposition is conducted at one or more temperatures ranging from about 25° C. to about 400° C. using an alkylsilane precursor selected from the group consisting of diethylsilane, triethylsilane, and combinations thereof.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: April 11, 2023
    Assignee: Versum Materials US, LLC
    Inventors: Anupama Mallikarjunan, Andrew David Johnson, Meiliang Wang, Raymond Nicholas Vrtis, Bing Han, Xinjian Lei, Mark Leonard O'Neill
  • Publication number: 20230040688
    Abstract: A multi-wavelength light-emitting semiconductor device and a method of fabricating the same are disclosed. The semiconductor device includes a substrate, a first reflector on the substrate, a light emission layer on the first reflector, second reflectors on corresponding active regions; and apertures on corresponding active regions. The light emission layer includes active regions. Each of the active regions includes a primary emission wavelength different from each other.
    Type: Application
    Filed: July 28, 2022
    Publication date: February 9, 2023
    Applicant: IQE plc
    Inventor: Andrew David JOHNSON
  • Patent number: 11491050
    Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.
    Type: Grant
    Filed: November 6, 2019
    Date of Patent: November 8, 2022
    Assignee: Alcon Inc.
    Inventors: Nicholas Max Gunn, Andrew David Johnson, Pooria Sharif Kashani
  • Patent number: 11432961
    Abstract: Ophthalmic surgical devices, systems, and methods for automatically controlling the injection or extraction of viscous fluids from a patient's eye are provided. A syringe pump connected with an actuation line and a powered syringe provides pressures for viscous fluid injection or extraction in a vitreous chamber of the eye. A sensor disposed adjacent to or inside the eye determines sensor data relating to an intraocular pressure (IOP). The controller receives the sensor data and regulates the injection or extraction of the viscous fluid in response to the detected IOP, such as by controlling the syringe pump. The controller may determine whether the IOP is above an upper threshold or below a lower threshold and may control the syringe pump to regulate the injection or extraction of viscous fluid to maintain the IOP between the upper and the lower thresholds.
    Type: Grant
    Filed: May 10, 2017
    Date of Patent: September 6, 2022
    Assignee: Alcon, Inc.
    Inventors: Tammo Heeren, Andrew David Johnson
  • Publication number: 20220119479
    Abstract: The present invention relates to soluble multi-domain binding molecules comprising T cell receptors (TCR) having specificity for an antigen, an immunoglobulin Fc domain or an albumin-binding moiety; and an immune effector domain. Such multi-domain binding molecules are advantageous because they display improved half-life while retaining function.
    Type: Application
    Filed: January 30, 2020
    Publication date: April 21, 2022
    Inventors: Paul CONROY, Stephen HEARTY, Amandine GEORGES, Lok Hang MAK, Nikolai LISSIN, Andrew David JOHNSON, Emma HODGSON, Udofoyo UYE
  • Publication number: 20210361477
    Abstract: A cannula adapter guiding a catheter out of a cannula and dispensing fluid from a reservoir is disclosed. The cannula adapter includes a first slidable member operably connected to the catheter such that a distal movement of the first slidable member causes the catheter to move within and out of the cannula. The cannula adapter includes a second slidable member operably connected to a plunger and the reservoir such that a proximal movement and a subsequent distal movement of the second slidable member dispenses fluid from the reservoir and out from the catheter.
    Type: Application
    Filed: May 11, 2021
    Publication date: November 25, 2021
    Inventors: Andrew David Johnson, David Steven Haffner
  • Patent number: 11051978
    Abstract: Ophthalmic surgical devices, systems, and methods for regulating aspiration from a patient's eye are provided. A vacuum pump in fluid communication with an aspiration line provides fluid aspiration from a vitreous chamber of the eye through the aspiration line. A sensor disposed adjacent to or inside the eye determines sensor data relating to an intraocular pressure (IOP). The controller receives the sensor data and regulates the aspiration in response to changes in the IOP, such as by controlling the vacuum pump. The controller may determine whether a fluid infusion to the vitreous chamber through an infusion line is below a maximum infusion level, regulate the infusion in response to the IOP being below a threshold value and the infusion being below the maximum infusion level, and regulate the aspiration in response to the IOP being below the threshold value and the infusion being at or above the maximum infusion level.
    Type: Grant
    Filed: May 9, 2017
    Date of Patent: July 6, 2021
    Assignee: Alcon Inc.
    Inventors: Tammo Heeren, Andrew David Johnson
  • Patent number: 10952808
    Abstract: The present disclosure provides illumination apparatus for ophthalmic surgery comprising a light that provides planar field illumination, as well as methods of using the illumination apparatus. The illuminators of the present disclosure can be used in intraocular refractive and vitroretinal surgery to better enable visualization of anatomical structures of the eye currently difficult to view, capturing detail that would normally be obscured using conventional illumination apparatus.
    Type: Grant
    Filed: August 22, 2017
    Date of Patent: March 23, 2021
    Assignee: Alcon, Inc.
    Inventor: Andrew David Johnson
  • Patent number: 10892132
    Abstract: Xenon is contained within articles of manufacture such as light bulbs. Described herein are an apparatus, system, a method to capture and collect the xenon contained in articles of manufacture such as defective light bulbs for recovery and/or reuse.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: January 12, 2021
    Assignee: Versum Materials US, LLC
    Inventors: Christopher Michael Albright, Andrew David Johnson, David Charles Winchester
  • Patent number: 10758411
    Abstract: A handheld reciprocating surgical tool may contain an inertial damper to counteract the momentum of a diaphragm assembly of the reciprocating surgical tool. A momentum of the inertial damper may be tuned such that the momentum of the inertial damper is comparable in magnitude and opposite in direction to a momentum of the diaphragm assembly. The diaphragm assembly may include a cutting tool. The combined momentum of a diaphragm assembly and the inertial damper may result in a reduced net momentum, which may reduce vibration of the reciprocating surgical tool haptically experienced by a surgeon, thereby improving surgeon comfort.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: September 1, 2020
    Assignee: Alcon Inc.
    Inventors: Joshua Dean, Nicholas Max Gunn, Andrew David Johnson
  • Patent number: 10743984
    Abstract: Ophthalmic implants and methods of use that provide structural support to the optic nerve are disclosed herein. An adhesive and/or ophthalmic implant may be delivered to an optic nerve of an eye to relieve pressure on the optic nerve. The ophthalmic implant may include a base portion that includes a first surface and a second surface opposing the second surface and a protrusion from the second surface for extending into a cup of an optic nerve in an eye.
    Type: Grant
    Filed: March 22, 2018
    Date of Patent: August 18, 2020
    Assignee: Alcon Inc.
    Inventors: Nicholas Max Gunn, Andrew David Johnson
  • Patent number: 10722618
    Abstract: A method and system assist a physician in controlling pressure in a line during a surgery. The method includes filtering a vacuum signal such that portions of the vacuum signal having a frequency greater than a threshold frequency (e.g., ten Hz) are not passed. Thus a filtered vacuum signal is provided. The method also includes providing a control signal to a vacuum source. The control signal is selected from the vacuum signal and the filtered vacuum signal. The vacuum source provides a vacuum having a level based on the control signal.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: July 28, 2020
    Assignee: Alcon Inc.
    Inventors: Andrew Mason Hahn, Andrew David Johnson, Brian William McDonell
  • Publication number: 20200069465
    Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.
    Type: Application
    Filed: November 6, 2019
    Publication date: March 5, 2020
    Inventors: Nicholas Max Gunn, Andrew David Johnson, Pooria Sharif Kashani
  • Patent number: 10537401
    Abstract: The present disclosure provides a vitreous visualization system including a vitreous illuminator including a vitreous visualization light source and a vitreous visualization tool that transmits lights from the vitreous visualization light source into an eye having vitreous, a pupil, and a vitreous-pupil axis. The vitreous visualization system further includes a general illuminator, which may include a general light source and a general illumination tool that transmits light from the general light source into the eye. The present disclosure further provided a vitreous visualization system including only a vitreous illuminator that transmits light from the vitreous visualization light source into an eye having vitreous, a pupil, a vitreous-pupil axis, and a retina at an angle B with the vitreous-pupil axis of the eye such that the brightness of vitreous in the eye is higher than the brightness of the retina of the eye.
    Type: Grant
    Filed: October 25, 2017
    Date of Patent: January 21, 2020
    Assignee: Novartis AG
    Inventors: Cesario Dos Santos, Andrew David Johnson, Ronald Smith, Gerald David Bacher, Alireza Mirsepassi, Ryan Takakawa
  • Patent number: 10500090
    Abstract: Methods and systems for performing an ophthalmic surgical treatment procedure include one or more wicking members to secure a volume of treatment fluid to a distal end of a surgical instrument. Such a surgical instrument may include an elongate tubular member having a proximal end, a distal end, and a lumen extending therebetween, the elongate tubular member being configured to penetrate a body cavity of a patient. The instrument may further include a wicking member extending beyond the distal end of the elongate tubular member. The wicking member may be configured to secure a volume of treatment fluid delivered through the lumen to the wicking member for application from the wicking member to target tissue in the body cavity.
    Type: Grant
    Filed: December 14, 2016
    Date of Patent: December 10, 2019
    Assignee: Novartis AG
    Inventors: Nicholas Max Gunn, Andrew David Johnson, Pooria Sharif Kashani
  • Publication number: 20190252567
    Abstract: A photovoltaic diode comprising an emitter layer of doped Group III-V semiconductor material, having a first conductivity type and a first bandgap in at least part of the layer, an intrinsic layer of dilute nitride Group III-V semiconductor material having a composition given by the formula Ga1-zInzNxAsySb1-x-y, where 0<z<0.20, 0.01<x<0.05, and y>0.80 having a second bandgap, a base layer of semiconductor material having a third bandgap and a second conductivity type opposite to the first conductivity type. The emitter, intrinsic and base layers form a diode junction. The first bandgap is greater than the second bandgap.
    Type: Application
    Filed: April 24, 2019
    Publication date: August 15, 2019
    Inventors: Soon Fatt YOON, Kian Hua TAN, Wan Khai LOKE, Satrio WICAKSONO, Nicholas EKINS-DAUKES, Tomos THOMAS, Andrew David JOHNSON
  • Patent number: 10319862
    Abstract: Described herein are apparatus comprising one or more silicon-containing layers and a metal oxide layer. Also described herein are methods for forming one or more silicon-containing layers to be used, for example, as passivation layers in a display device. In one particular aspect, the apparatus comprises a transparent metal oxide layer, a silicon oxide layer and a silicon nitride layer. In this or other aspects, the apparatus is deposited at a temperature of 350° C. or below. The silicon-containing layers described herein comprise one or more of the following properties: a density of about 1.9 g/cm3 or greater; a hydrogen content of about 4×1022 cm?3 or less, and a transparency of about 90% or greater at 400-700 nm as measured by a UV-visible light spectrometer.
    Type: Grant
    Filed: March 8, 2013
    Date of Patent: June 11, 2019
    Assignee: VERSUM MATERIALS US, LLC
    Inventors: Robert Gordon Ridgeway, Andrew David Johnson, Anupama Mallikarjunan, Raymond Nicholas Vrtis, Xinjian Lei, Mark Leonard O'Neill, Manchao Xiao, Jianheng Li, Michael T. Savo
  • Patent number: 10285802
    Abstract: Described herein is an extension device to extend ocular tissue within an irideocorneal angle of an eye of a patient, comprising a flexible body and a plurality of tensioning features disposed on the body. The body is sized and configured to be disposed within the irideocorneal angle. The body has a curved longitudinal axis, a channel extending from a first end to a second end, an inner convex side, and an outer concave side. The body is flexible between a first flexed condition and a second unflexed condition. The body has a first radius of curvature in the first flexed condition and a second radius of curvature in the unflexed condition. Each tensioning feature is shaped and sized to grasp the ocular tissue within the irideocorneal angle.
    Type: Grant
    Filed: August 16, 2016
    Date of Patent: May 14, 2019
    Assignee: Novartis AG
    Inventor: Andrew David Johnson
  • Publication number: 20180271643
    Abstract: Ophthalmic implants and methods of use that provide structural support to the optic nerve are disclosed herein. An adhesive and/or ophthalmic implant may be delivered to an optic nerve of an eye to relieve pressure on the optic nerve. The ophthalmic implant may include a base portion that includes a first surface and a second surface opposing the second surface and a protrusion from the second surface for extending into a cup of an optic nerve in an eye.
    Type: Application
    Filed: March 22, 2018
    Publication date: September 27, 2018
    Inventors: Nicholas Max Gunn, Andrew David Johnson