Patents by Inventor Robert S. Hedin

Robert S. Hedin 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: 10538440
    Abstract: A method of treating an organic contaminated material includes producing manganese oxide media in a first treatment system; and contacting the organic contaminated material with the manganese oxide media in a second treatment system. The manganese oxide media may be coated aggregate having a layer of manganese oxide. The manganese oxide media may be manganese oxide solids. The manganese oxide solids can be formed by removing at least a portion of the manganese oxide layer from the coated aggregate.
    Type: Grant
    Filed: March 2, 2017
    Date of Patent: January 21, 2020
    Assignee: Hedin Environmental, Inc.
    Inventor: Robert S. Hedin
  • Publication number: 20170253507
    Abstract: A method of treating an organic contaminated material includes producing manganese oxide media in a first treatment system; and contacting the organic contaminated material with the manganese oxide media in a second treatment system. The manganese oxide media may be coated aggregate having a layer of manganese oxide. The manganese oxide media may be manganese oxide solids. The manganese oxide solids can be formed by removing at least a portion of the manganese oxide layer from the coated aggregate.
    Type: Application
    Filed: March 2, 2017
    Publication date: September 7, 2017
    Inventor: Robert S. Hedin
  • Patent number: 5954969
    Abstract: A method and system is provided for producing a commercially usable iron oxide material by treating iron contaminated water. A clean effluent is also produced. Iron contaminated water is sampled to determine a bicarbonate to iron molar ratio. The flow of the water is directed to a collection basin assembly when the bicarbonate to iron molar ratio is at least 2 to 1. Iron oxide material precipitates in the collection basin assembly. The water from the collection basin assembly is directed to a constructed wetland. After a period of time, the iron oxide material in the collection basin assembly can be harvested and used for commercial purposes without excessive further treatment.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: September 21, 1999
    Inventor: Robert S. Hedin