Patents by Inventor David Rocca

David Rocca 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).

  • Driver tool
    Patent number: 4448097
    Abstract: A driver tool utilizing a sleeve which fits within and rotates with an elongated shaft. Driving bits are held to the sleeve and turned by the action of the rotating shaft. A handle which is expandable connects to the elongated shaft.
    Type: Grant
    Filed: December 10, 1981
    Date of Patent: May 15, 1984
    Inventor: David Rocca