Patents by Inventor Leonard Friedland

Leonard Friedland 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).

  • Patent number: 6389701
    Abstract: A hand tool is fitted with a fixed shield and a movable shield which is rotatably mounted around the fixed shield. The two shields are aligned with one another by each shield being keyed into a countersunk washer formed with an anchor slot for the fixed shield and a semi-annular guideway for the movable shield. A torsion spring normally biases the movable shield into a closed position about the fixed shield.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: May 21, 2002
    Assignee: Gyros Precision Tools, Inc.
    Inventor: Leonard Friedland