Patents Assigned to General Environmental Systems Co., Inc.
  • Process for treating animal waste
    Patent number: 3939280
    Abstract: A process of treating poultry manure with acid, formaldehyde and urea to obtain a pathogen-free product suitable as a feedstuff for ruminant animals.
    Type: Grant
    Filed: August 30, 1974
    Date of Patent: February 17, 1976
    Assignee: General Environmental Systems Co., Inc.
    Inventor: John N. Karnemaat