Patents by Inventor Dale R. Laurance

Dale R. Laurance 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).

  • Process for clarifying algae-laden waste water stream
    Patent number: 4330407
    Abstract: Disclosed is a process for clarifying an algae-laden waste water stream wherein the waste water stream is deaerated and passed through a substantially light-free environment before coagulating aids are added to the water stream and the water stream is clarified in a coagulated solids settling step. The deaeration and light-free travel allow the algae to be more easily settled.
    Type: Grant
    Filed: August 29, 1980
    Date of Patent: May 18, 1982
    Assignee: Olin Corporation
    Inventors: David A. Shermer, Parsons P. Jim, Dale R. Laurance