Patents by Inventor Graham Ritchie

Graham Ritchie 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).

  • Dynamically determining relative product performance using quantitative values
    Patent number: 11037181
    Abstract: Systems, methods, and computer-readable media are disclosed for dynamically determining relative product performance using quantitative values.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 15, 2021
    Assignee: Amazon Technologies, Inc.
    Inventors: Christopher Walton, Graham Ritchie, Paul Anthony Kotas, Sean Donahoe, Oliver Masting, David Neil Turner, Ramesh Ravipati, José Lucas Lemos Mendonça, Sebastian Koch
  • High temperature battery
    Patent number: 5895730
    Abstract: An electrolyte system suitable for a molten salt electrolyte high temperature battery is described consisting only of a first component which consists of one or more lithium halides and a second component which consists of one or more lithium compounds which are not lithium halides, and is preferably one or more of lithium sulphate, lithium sulphide, lithium metaborate and lithium oxide. A molten salt electrolyte high temperature battery is described incorporating the electrolyte (2), an anode, preferably of lithium or a lithium alloy (3), and a cathode, preferably of iron disulphide (1).
    Type: Grant
    Filed: March 26, 1997
    Date of Patent: April 20, 1999
    Assignee: Secretary of State for Defense, The Defence Evaluation and Research Agency
    Inventor: Andrew Graham Ritchie