Patents by Inventor Walter T. Logan

Walter T. 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).

  • Poultry house litter treatment
    Patent number: 6017525
    Abstract: A dry composition containing large numbers of beneficial bacteria and enzymes for the digestion of poultry manure is used to treat poultry litter. The growth of the beneficial bacteria, activated by moisture in poultry droppings prevents the growth of pathogenic bacteria such as E. coli, Salmonella and Campylobacter by competitive exclusion.
    Type: Grant
    Filed: March 30, 1998
    Date of Patent: January 25, 2000
    Inventors: Walter T. Logan, Stephen L. Bartlett
  • Water treatment with large numbers of non-pathogenic bacteria to improve yield of aquatic animals
    Patent number: 5746155
    Abstract: The addition of a sufficient quantity of organisms of bacteria selected from the group comprising Bacillus lentimorbus, Bacillus stearothermophilus and Bacillus cereus and mixtures thereof to a fish pond increases the production of fish in the pond by over 25%.
    Type: Grant
    Filed: June 17, 1997
    Date of Patent: May 5, 1998
    Inventors: Walter T. Logan, Stephen L. Bartlett