Patents by Inventor Rachel E. Hanson

Rachel E. Hanson 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).

  • Digestion of elemental sulfur in bioreactor during biological oxidation of sulfide in wastewater and groundwater
    Patent number: 10538444
    Abstract: A method is presented for biological removal of contaminants like sulfide from ground waters and industrial waters. A fixed film compartmentalized bioreactor or bioreactors are used to convert sulfide to elemental sulfur and the subsequent conversion of the elemental sulfur to sulfates. The present invention uses a packed bed bioreactor configuration that uses packing material to maximize the concentration of sulfide oxidizing bacteria.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: January 21, 2020
    Assignee: UOP LLC
    Inventors: F. Stephen Lupton, Rachel E. Hanson, William G. Sheridan
  • DIGESTION OF ELEMENTAL SULFUR IN BIOREACTOR DURING BIOLOGICAL OXIDATION OF SULFIDE IN WASTEWATER AND GROUNDWATER
    Publication number: 20180170781
    Abstract: A method is presented for biological removal of contaminants like sulfide from ground waters and industrial waters. A fixed film compartmentalized bioreactor or bioreactors are used to convert sulfide to elemental sulfur and the subsequent conversion of the elemental sulfur to sulfates. The present invention uses a packed bed bioreactor configuration that uses packing material to maximize the concentration of sulfide oxidizing bacteria.
    Type: Application
    Filed: December 6, 2017
    Publication date: June 21, 2018
    Inventors: F. Stephen Lupton, Rachel E. Hanson, William G. Sheridan