Patents by Inventor Daniel J. Onofrio

Daniel J. Onofrio 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).

  • Lag driver
    Patent number: 4724731
    Abstract: A driver for threaded fasteners, such as for an eye lag, acoustical lag and a flattened end lag screw and the like, employing a hex shank for positive chucking, a collared and chamfered tool end for precise lag alignment, and a scallop in the hex shank.
    Type: Grant
    Filed: January 17, 1986
    Date of Patent: February 16, 1988
    Inventor: Daniel J. Onofrio