Patents by Inventor Riccardo Lamperti

Riccardo Lamperti 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).

  • Device for closing road wells in vehicle and pedestrian areas
    Patent number: 5937583
    Abstract: A device for closing road wells in vehicle and pedestrian zones is provided, said device comprising a support frame (2) defining an access opening (4) and a plate closing element (5) rotatably engaged with the support frame (2) about a hinging axis (6) so as to be movable between a raised open position and a lowered closed position.
    Type: Grant
    Filed: October 31, 1997
    Date of Patent: August 17, 1999
    Inventor: Riccardo Lamperti