Patents by Inventor Denny Wiedow

Denny Wiedow 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).

  • Process for producing biogas
    Patent number: 8759052
    Abstract: Process for the production of a biogas containing methane from an organic matter amenable to anaerobic digestion comprising feeding an anaerobic digester with the organic matter, said anaerobic digester containing a digestion medium comprising microorganisms capable of digesting said organic matter, wherein the total inorganic carbon concentration of the digestion medium is maintained above 9000 mg of equivalent CaCO3/l and the buffering capacity is maintained above 200 mmol/l by the addition of a buffering reagent comprising sodium bicarbonate to the digestion medium.
    Type: Grant
    Filed: May 10, 2011
    Date of Patent: June 24, 2014
    Assignee: Solvay SA
    Inventors: Jan Bach, Jorg Burgstaler, Denny Wiedow, Frederik Degraeve
  • Process for producing biogas
    Publication number: 20130059357
    Abstract: Process for the production of a biogas containing methane from an organic matter amenable to anaerobic digestion comprising feeding an anaerobic digester with the organic matter, said anaerobic digester containing a digestion medium comprising microorganisms capable of digesting said organic matter, wherein the total inorganic carbon concentration of the digestion medium is maintained above 9000 mg of equivalent CaCO3/l and the buffering capacity is maintained above 200 mmol/l by the addition of a buffering reagent comprising sodium bicarbonate to the digestion medium.
    Type: Application
    Filed: May 10, 2011
    Publication date: March 7, 2013
    Applicant: SOLVAY SA
    Inventors: Jan Bach, Jorg Burgstaler, Denny Wiedow, Frederik Degraeve