Patents by Inventor Roberto Il Grande

Roberto Il Grande 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: 6327822
    Abstract: A building construction element is used to form cast concrete interspaces in a concrete slab. The element has a bowl shaped portion which has a concave upper surface forming substantially a catenary as seen in vertical section. Supports are connected with the bowl shaped portion and extend downward relative to the bowl shaped portion.
    Type: Grant
    Filed: July 6, 1999
    Date of Patent: December 11, 2001
    Assignee: Daliform S.R.L
    Inventor: Roberto Il Grande
  • Patent number: D370270
    Type: Grant
    Filed: November 9, 1993
    Date of Patent: May 28, 1996
    Assignee: Daliform S.r.l.
    Inventors: Carlo Dal Mas, Roberto Il Grande