Patents by Inventor Kai Griebenow

Kai Griebenow 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).

  • Urea-based system for energy and waste recovery in water recycling
    Patent number: 10377645
    Abstract: The invention presents a urea bio-electrochemical (UBE) system to achieve resource recovery from water recycling systems. A GAC-urease bioreactor was used to recover urea from wastewater stream, and converted to ammonia. Then, the ammonia produced was used to feed an electrochemical cell to gather electrical energy. The invention shows the feasibility of using the UBE system in combination with a forward osmosis subsystem for water reclamation.
    Type: Grant
    Filed: August 31, 2012
    Date of Patent: August 13, 2019
    Assignee: University of Puerto Rico
    Inventors: Carlos R. Cabrera, Eduardo Nicolau, Michael Flynn, Kai Griebenow
  • Urea-based system for energy and waste recovery in water recycling
    Publication number: 20140061127
    Abstract: The invention presents a urea bio-electrochemical (UBE) system to achieve resource recovery from water recycling systems. A GAC-urease bioreactor was used to recover urea from wastewater stream, and converted to ammonia. Then, the ammonia produced was used to feed an electrochemical cell to gather electrical energy. The invention shows the feasibility of using the UBE system in combination with a forward osmosis subsystem for water reclamation.
    Type: Application
    Filed: August 31, 2012
    Publication date: March 6, 2014
    Inventors: Carlos R. Cabrera, Eduardo Nicolau, Michael Flynn, Kai Griebenow