Calgon Carbon announces recent UV patent, license developments

New patents granted by China's State Intellectual Property Office, Hong Kong's Intellectual Property Department and the Israeli Patent Office for its invention of a process that utilizes low levels of UV light energy in water to prevent Cryptosporidium and other such parasites from infecting humans. Plants in New York, Alberta and British Columbia sign license agreements...

PITTSBURGH, PA, June 8, 2005 -- Calgon Carbon Corporation (NYSE: CCC) announced today that its UV Technologies Division has been granted three new patents for the application of low-energy UV light for the inactivation of pathogenic parasites in drinking water. Calgon Carbon also received commitments from three water treatment facilities to operate its Sentinel®: UV disinfection systems under license agreements.

The new patents were granted by China's State Intellectual Property Office, Hong Kong's Intellectual Property Department and the Israeli Patent Office. The Chinese, Hong Kong and Israeli patents are the fifth, sixth, and seventh to be granted to Calgon Carbon for its invention of a process that utilizes low levels of UV light energy in water to prevent Cryptosporidium and other such parasites from infecting humans. The company has also been awarded patents in the U.S., Canada, The Netherlands, and New Zealand.

Drinking water treatment plants in New York State and in Alberta and British Columbia, Canada, recently signed license agreements to operate Sentinel UV disinfection systems for the control of Cryptosporidium and Giardia. Combined, the systems will disinfect up to 100 million gallons of water per day. The addition of these three license agreements brings the total of signed license agreements between Calgon Carbon and water treatment providers to ten.

Commenting on the announcements, Bob O'Brien, senior vice president of Calgon Carbon said, "We are very pleased that our customers and the patent offices in China, Hong Kong and Israel recognize the contribution and value that our UV disinfection technology brings to the global water treatment industry."

Calgon Carbon Corp. (www.calgoncarbon.com), based in Pittsburgh, is a global leader in services and solutions for making air and water cleaner and safer. The company employs approximately 1,100 people at 16 operating facilities and 27 sales and service centers worldwide.

In related news, see: "Calgon Carbon's UV Division announces three orders worth $650K"

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