Patents by Inventor Earnest C. Leung

Earnest C. Leung 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).

  • Circuit card support
    Patent number: D274809
    Type: Grant
    Filed: April 21, 1981
    Date of Patent: July 24, 1984
    Assignee: Northern Telecom Limited
    Inventors: Isaac R. Revah, Jozsef Kelemen, Earnest C. Leung