Patents by Inventor Mark J. Stephenson

Mark J. Stephenson 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).

  • Dual-compartment bioreactor for use in wastewater treatment and algal production
    Patent number: 9487748
    Abstract: A dual compartment bioreactor system includes a heterotrophic bioreactor, an autotrophic bioreactor, and a membrane between the autotrophic bioreactor and the heterotrophic bioreactor. The autotrophic bioreactor includes a transparent outer wall. Each population benefits from the products of the metabolism of the other. Methods for wastewater treatment and algal production utilize the system.
    Type: Grant
    Filed: November 5, 2014
    Date of Patent: November 8, 2016
    Assignee: Palo Alto Research Center Incorporated
    Inventors: Cory Lancaster, Francisco E. Torres, Mark J. Stephenson
  • DUAL-COMPARTMENT BIOREACTOR FOR USE IN WASTEWATER TREATMENT AND ALGAL PRODUCTION
    Publication number: 20160122705
    Abstract: A dual compartment bioreactor system includes a heterotrophic bioreactor, an autotrophic bioreactor, and a membrane between the autotrophic bioreactor and the heterotrophic bioreactor. The autotrophic bioreactor includes a transparent outer wall. Each population benefits from the products of the metabolism of the other. Methods for wastewater treatment and algal production utilize the system.
    Type: Application
    Filed: November 5, 2014
    Publication date: May 5, 2016
    Inventors: Cory Lancaster, Francisco E. Torres, Mark J. Stephenson