Patents by Inventor Richard W. Derowitsch

Richard W. Derowitsch 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).

  • Patent number: 4880057
    Abstract: A process of removing carbonates from a well of a water collection and treatment system utilizes "aggressive" water obtained prior to the end of the water treatment process to remove carbonate deposits from the well. A preferred embodiment uses water which is the product of a reverse osmosis desalinization water treatment step and which is injected with carbon dioxide to form an aqueous carbonic acid solution for removal of the carbonate.
    Type: Grant
    Filed: October 17, 1988
    Date of Patent: November 14, 1989
    Inventor: Richard W. Derowitsch
  • Patent number: 4778006
    Abstract: A process of removing carbonates from a wall of a water collection and treatment system injects carbon dioxide into "aggressive" water obtained prior to the end of the water treatment process to form aqueous carbonic acid solution which is pumped into the well to react with the carbonate deposits to form bicarbonate solutions which are pumped from the well. A preferred embodiment forms the acid solution with the product of a reverse osmosis desalinization water treatment step. Another embodiment forms the solution with the product of a softening step.
    Type: Grant
    Filed: May 4, 1987
    Date of Patent: October 18, 1988
    Inventor: Richard W. Derowitsch