Patents by Inventor David Poltorak

David Poltorak 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).

  • Wastewater filtering medium
    Patent number: 8088278
    Abstract: A secondary wastewater treatment filtering bed medium, which includes a hollow tubular plastic body and a plurality of elongated ribs affixed to an outer surface of the body aligned with an axis of the body.
    Type: Grant
    Filed: October 27, 2008
    Date of Patent: January 3, 2012
    Inventor: David Poltorak
  • WASTEWATER FILTERING MEDIUM
    Publication number: 20100101994
    Abstract: A secondary wastewater treatment filtering bed medium, which includes a hollow tubular plastic body and a plurality of elongated ribs affixed to an outer surface of the body aligned with an axis of the body.
    Type: Application
    Filed: October 27, 2008
    Publication date: April 29, 2010
    Inventor: DAVID POLTORAK