Patents by Inventor Robert A. Otto

Robert A. Otto 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).

  • Rain-collection pad
    Patent number: 4899400
    Abstract: A rain-collection pad for ponds comprising a pan-shaped pad having a horizontal bottom and four vertical, contiguous side walls, said pad being adapted to float on the exposed surface of a pond and having a stiffening means attached to at least one wall.
    Type: Grant
    Filed: October 7, 1987
    Date of Patent: February 13, 1990
    Assignee: Serrot Corporation
    Inventors: Guillermo M. Torres, Michael W. Bowler, Robert A. Otto