Patents by Inventor Howard W. Goard

Howard W. Goard 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).

  • Biotreatment using carbon treated recycle and/or clarifier effluent backwash
    Patent number: 4207179
    Abstract: In a process for biotreating industrial waste water, a portion of the effluent is treated with activated carbon and recycled to the biotreater. This results in a substantial improvement in the biotreater performance. In another embodiment, the biotreatment is an activated sludge process and the clarifier effluent is filtered to stop loss of bacteria and periodically the filter is backwashed to return the bacteria to the system.
    Type: Grant
    Filed: August 22, 1977
    Date of Patent: June 10, 1980
    Assignee: Phillips Petroleum Company
    Inventors: William C. McCarthy, Howard W. Goard