Patent News | "Severn Trent De Nora Assigned Patent"

By : Water World
Source :
Category : Patent News

ALEXANDRIA, Va., April 7 -- Severn Trent De Nora, Sugar Land, Texas, has been assigned a patent (8,147,673) developed by five co-inventors for a "system and process for treatment and de-halogenation of ballast water." The co-inventors are Harold E. Childers II, Houston, Randolto Fernandez, Houston, Rudolf C. Matousek, Richmond, Texas, James B. Moore, Katy, Texas, and David W. Hill, Sugar Land, Texas.

The abstract of the patent published by the U.S. Patent and Trademark Office states: "A system and process for de-halogenating ballast water before releasing the ballast water from the vessel. In one embodiment, the system comprises a means for measuring the halogen content of the ballast water, a reducing agent source in fluid communication with the ballast water, and a means for controlling the amount of reducing agent supplied to the ballast water. In one aspect, the means for measuring the halogen content comprises one or more oxidation/reduction potential analyzers. In another embodiment, the system comprises one or more hypochlorite electrolytic cells for generating hypochlorite to treat the ballast water. One embodiment of the process for de-halogenating ballast water comprises measuring the oxidation/reduction potential of the ballast water and adding one or more reducing agents to the ballast water to de-halogenate the ballast water in response to the measured oxidation/reduction potential. In one aspect, the oxidation/reduction potential is modulated so that excess reducing agent is present in the ballast water."

The patent application was filed on June 1, 2007 (11/757,315). The full-text of the patent can be found at,147,673&OS=8,147,673&RS=8,147,673

Written by Kusum Sangma; edited by Anand Kumar.

For more information about Targeted News Service federal patent awards please contact: Myron Struck, Editor, Direct: 703/866-4708, Cell: 703/304-1897,

Source :