Patents by Inventor John William Logan

John William Logan 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: 10982233
    Abstract: A process and system for treating biodegradable waste is described that utilizes serial thermophilic and mesophilic microbial digestion to product fuel gas and a stable solid product at high efficiencies.
    Type: Grant
    Filed: November 7, 2017
    Date of Patent: April 20, 2021
    Assignee: EAGLE GREEN ENERGY II LLC
    Inventors: John William Logan, Sumesh M Arora, Richard L Vetter, Eric Francis Shafer
  • Publication number: 20180127790
    Abstract: A process and system for treating biodegradable waste is described that utilizes serial thermophilic and mesophilic microbial digestion to product fuel gas and a stable solid product at high efficiencies.
    Type: Application
    Filed: November 7, 2017
    Publication date: May 10, 2018
    Inventors: John William Logan, Sumesh M. Arora, Richard L. Vetter, Eric Francis Shafer
  • Patent number: 7785467
    Abstract: Compositions, methods and apparatus for the production of methane gas from poultry litter are provided. Particular features are selection of methanogens, well stirring of the digester, and control of critical parameters of digester temperature, pH, and solids content resulting in enhanced methane production and reduced nitrogen compositions. A benefit of the invention is the capability to maintain a closed system without waste by-products.
    Type: Grant
    Filed: May 15, 2007
    Date of Patent: August 31, 2010
    Assignee: Eagle Green Energy, LLC
    Inventors: John William Logan, Sumesh Mohan Arora, Bill Henry Johnson, Richard L Vetter, Clarence Monte Howard
  • Publication number: 20080283468
    Abstract: Compositions, methods and apparatus for the production of methane gas from poultry litter are provided. Particular features are selection of methanogens, well stirring of the digester, and control of critical parameters of digester temperature, pH, and solids content resulting in enhanced methane production and reduced nitrogen compositions. A benefit of the invention is the capability to maintain a closed system without waste by-products.
    Type: Application
    Filed: May 15, 2007
    Publication date: November 20, 2008
    Inventors: John William Logan, Sumesh Mohan Arora, Bill Henry Johnson, Richard L. Vetter, Clarence Monte Howard