Patents by Inventor Robert S. Collaco

Robert S. Collaco 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).

  • Accessory for recycling paper
    Patent number: 6934506
    Abstract: An accessory for recycling paper receives paper, such as from a copy machine, marks that paper, and stores the marked paper for re-use and/or recycling.
    Type: Grant
    Filed: May 27, 2004
    Date of Patent: August 23, 2005
    Inventor: Robert S. Collaco