Press Release

Intellectual Property Office of New Zealand Grants Calgon Carbon Corporation Patent

PITTSBURGH, PA  –  05/09/2003

The Intellectual Property Office of New Zealand has granted Calgon Carbon Corporation, (NYSE: CCC), a patent (New Zealand Patent Number 508008) for a Method for Preventing Replication in Cryptosporidium Parvum Using Ultraviolet Light.

Cryptosporidium, a microscopic parasite present in most surface waters, is highly resistant to traditional disinfection treatment methods such as chlorination. Prior to Calgon Carbon Corporation’s breakthrough discovery, it was thought that very high doses of UV light were required to inactivate cryptosporidium. Calgon Carbon Corporation’s research demonstrated that low levels of UV could be used to keep cryptosporidium from replicating, thereby making UV light a commercially viable technology for drinking water applications.

“We are very pleased that several regions of the world are acknowledging our significant scientific discovery,” said James G. Fishburne, senior vice president of Calgon Carbon Corporation. “Patents such as the one granted by New Zealand, along with previous patents issued in the United States, Canada, and The Netherlands, ensure our ability to continue providing proven cost-effective applications for protecting water supplies. It also underscores our company’s credibility in an important and growing overseas market, New Zealand.”

Calgon Carbon Corporation, headquartered in Pittsburgh, Pennsylvania, is a global leader in services and solutions for making air and water cleaner and safer. The company employs approximately 1,000 people at 14 operating facilities and 11 sales and service centers worldwide.

The Private Securities Litigation Reform Act of 1995 provides a “safe harbor” for forward-looking statements. This document contains certain statements that are forward-looking relative to the company’s future strategy and performance. They involve known and unknown risks and uncertainties that may cause the company’s actual results in future periods to be materially different from any further performance.


For more information, please contact Charles E. Fluharty, Marketing Director, Calgon Carbon, (412) 787-5672