Patents by Inventor Cindy Wallis-Lage

Cindy Wallis-Lage 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).

  • Biological nutrient removal process for treatment of wastewater
    Patent number: 5601719
    Abstract: An apparatus and method are provided that are useful in a process for treating organic wastewater for the removal of phosphorus and nitrogen compounds. The apparatus includes an anoxic zone, an oxic zone, and an anaerobic treatment zone, each having therein microorganisms that are operable to affect biological denitrification, BOD oxidation, luxury-uptake of phosphorus and formation of nitrates.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: February 11, 1997
    Assignee: Black & Veatch
    Inventors: James M. Hawkins, Cindy Wallis-Lage