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).

  • Scheduling delivery of chemical products based on a predicted estimated time of exhaustion
    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.
  • Networked route scheduling
    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