Patents by Inventor Frederick T. Haines

Frederick T. Haines 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).

  • Method for wastewater treatment
    Patent number: 4615807
    Abstract: Disclosed is a method for treating sewage wastewater comprising in lieu of activated sludge treatment mixing into wastewater a bactericidally effective and disinfectant amount of a formulation comprising compounds selected from the group consisting of quaternary organic ammonium halides or mixtures thereof and an organo-tin disinfectant compound. A plant employing the above method is also disclosed.
    Type: Grant
    Filed: July 23, 1985
    Date of Patent: October 7, 1986
    Assignee: United States Environmental Resources, Corp.
    Inventors: Frederick T. Haines, David Forte