Patents by Inventor Andrew Graham Ritchie

Andrew 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).

  • 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