Patents by Inventor David Grant Wardle

David Grant Wardle 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).

  • Intelligent compressor strategy to support hydrogen fueling
    Patent number: 7624770
    Abstract: Multi compressor systems and apparatuses for the manufacture, storage and dispensing of manufactured hydrogen fuel to hydrogen vehicle tanks or remote mobile refuelers are disclosed.
    Type: Grant
    Filed: September 23, 2005
    Date of Patent: December 1, 2009
    Assignee: The BOC Group, Inc.
    Inventors: Robert Walter Boyd, David Grant Wardle, Kelly R. Leitch, Satish S. Tamhankar, Gary Peter Lomas
  • Fluid flow measurement
    Patent number: 5679905
    Abstract: A fluid measuring device for measuring fluid present in liquid and vapor phase having a phase separator 12, a device for measuring the flow of the liquid and optionally the vapor and a device for recombining the liquid and vapor phases after the flow rates are measured.
    Type: Grant
    Filed: June 27, 1996
    Date of Patent: October 21, 1997
    Assignee: The BOC Group plc
    Inventor: David Grant Wardle