Patents by Inventor Douglas Renna

Douglas Renna 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).

  • Package stuffing
    Patent number: 5308677
    Abstract: Geometrically shaped bodies comprising a flat base having arcuate or geometrically shaped cross section from one face of which extend projections having a reverse arc or shape to that of the base below each of which is a cutout or slot.
    Type: Grant
    Filed: September 4, 1992
    Date of Patent: May 3, 1994
    Inventor: Douglas Renna