Patents by Inventor David Robert Johnson

David Robert 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: 20240117682
    Abstract: A cutting element assembly includes a cutter support including a cutter bore. A cutting element is in the cutter bore and a resilient element is integral with the cutter support. The resilient element is longitudinally compressible and has a displacement of greater than 0.1 mm and optionally less than 2 mm. Another cutting assembly includes a cutter support coupled to multiple cutting elements. A resilient element of the cutter support is compressible based on a force applied to the cutter support through one or more of the cutting elements. The resilient element can include a slit in the cutter support. A slit may, for instance, extend perpendicular or transverse to an axis of the cutting elements and allow the cutter support to flex and close off or reduce a size of the slit when forces act on one or more of the cutting elements.
    Type: Application
    Filed: September 26, 2023
    Publication date: April 11, 2024
    Inventors: David Robert Evan Snoswell, Ashley Bernard Johnson, Mauro Caresta, John Mervyn Cook
  • Patent number: 11946017
    Abstract: The current invention relates to a method of separating polyunsaturated fatty acids containing lipids from a lipids containing biomass.
    Type: Grant
    Filed: July 12, 2017
    Date of Patent: April 2, 2024
    Assignees: Evonik Operations GmbH, DSM IP Assets B.V.
    Inventors: Manfred Bärz, Marc Beiser, Georg Borchers, Stephen Robert Cherinko, Mathias Dernedde, Michael Diehl, Xiao Daniel Dong, Jürgen Haberland, Michael Benjamin Johnson, Robert Cody Kertis, Jochen Lebert, Neil Francis Leininger, Kirt Lyvell Matthews, Sr., Holger Pfeifer, Christian Rabe, Shannon Elizabeth Ethier Resop, Ginger Marie Shank, Vinod Tarwade, David Allen Tinsley, Daniel Verkoeijen
  • Publication number: 20240081994
    Abstract: A steerable delivery system is provided for delivering a replacement heart valve to a native heart valve location. The steerable delivery system includes an outer sheath assembly having a capsule along a distal end portion for retaining the replacement heart valve in a compressed configuration. The capsule is constructed to provide both compression resistance and flexibility. The capsule may be formed with an outer polymer layer, a metal middle layer located on a radially inner surface of the outer polymer layer, and an inner liner located on a radially inner surface of the metal middle layer. A fluoroelastomer layer is provided for bonding the inner liner to the metal middle layer. The metal middle layer is preferably a metal hypotube.
    Type: Application
    Filed: November 21, 2023
    Publication date: March 14, 2024
    Inventors: Alexander H. Cooper, David Robert Landon, Kevin M. Stewart, Garrett Dallas Johnson, Glen T. Rabito, Tarannum Ishaq Gutierrez, Hiroshi Okabe, Ramon Aguilar, JR., Jesse Robert Edwards, Taylor Jacob Scheinblum, Patrick Chow, Julio Cesar Sanchez, Hieu Minh Luong
  • Patent number: 7516082
    Abstract: A method and system for routing a delivery vehicle to a chemical usage facility is disclosed. The chemical usage facility includes one or more chemical dispense systems that dispense one or more chemical product. The quantity of each chemical product remaining is measured and communicated to a central management facility. The central management facility analyzes a trend in product usage to predict when the product quantity will reach a threshold depletion point. The chemical usage facility is scheduled on the route according to the predicted time associated with the threshold depletion point.
    Type: Grant
    Filed: April 29, 2003
    Date of Patent: April 7, 2009
    Assignee: Ecolab Inc.
    Inventors: Katherine Sanville, David Robert Johnson, Ronald Bruce Howes, Jr.
  • Publication number: 20040220844
    Abstract: A method and system for routing a delivery vehicle to a chemical usage facility is disclosed. The chemical usage facility includes one or more chemical dispense systems that dispense one or more chemical product. The quantity of each chemical product remaining is measured and communicated to a central management facility. The central management facility analyzes a trend in product usage to predict when the product quantity will reach a threshold depletion point. The chemical usage facility is scheduled on the route according to the predicted time associated with the threshold depletion point.
    Type: Application
    Filed: April 29, 2003
    Publication date: November 4, 2004
    Applicant: Ecolab Inc.
    Inventors: Katherine Sanville, David Robert Johnson, Ronald Bruce Howes