Patents by Inventor Alfred F. Laethem

Alfred F. Laethem 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).

  • Activating carbonaceous electrodes
    Patent number: 4273839
    Abstract: Described is a method of activating a carbonaceous electrode comprising the steps;1. Providing a negative electrode and a carbonaceous positive electrode spaced apart from each other;2. Providing an aqueous electrolyte with a current carrying water soluble material therein; and3. Closing the circuit and passing a current between the positive and negative electrodes through the electrolyte thereby generating oxygen for a period of time sufficient to activate the positive electrode.The electrodes are useful in a metal halogen electrical energy storage device.
    Type: Grant
    Filed: July 30, 1979
    Date of Patent: June 16, 1981
    Assignee: Energy Development Associates, Inc.
    Inventors: Peter Carr, Alfred F. Laethem