Patents by Inventor Luis E. D. Simas

Luis E. D. Simas 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 increasing the capacity of sewage treatment plant
    Patent number: 5348655
    Abstract: The present invention is directed to a method for increasing the capacity of a sewage treatment plant. In the method, oxygen is injected into the recycle sludge stream from the settling tank prior to introducing the recycle sludge stream into the secondary waste water treatment tank.
    Type: Grant
    Filed: July 2, 1993
    Date of Patent: September 20, 1994
    Assignee: Liquid Carbonic Corporation
    Inventors: Luis E. D. Simas, Jesus F. Gaztambide