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ALLEGHENY LUDLUM AWARDED ADDITIONAL $5 MILLION IN PATENT LAWSUIT AGAINST NIPPON STEEL

 PITTSBURGH, Oct. 5 /PRNewswire/ -- Allegheny Ludlum Corporation (NYSE: ALS) today reported that the Board of Appeals of the U.S. Patent and Trademark Office (USPTO) has upheld the validity of an Allegheny Ludlum patent which was the subject of an earlier lawsuit against Nippon Steel Corporation.
 This action reverses a previous USPTO decision which rejected Allegheny Ludlum's Patent 3,855,018 covering a manufacturing process for grain oriented silicon electrical steel. As a result of this decision Nippon Steel must now pay Allegheny Ludlum $5 million. Under a settlement agreement Nippon Steel has already paid $5 million to Allegheny Ludlum.
 "With this absolute vindication of our patent, our long struggle with the giant Japanese steelmaker for infringing on our process comes to an end," an Allegheny Ludlum spokesperson said. The litigation against Nippon Steel began more than seven years ago when a suit was filed in Japan after all previous attempts by Allegheny Ludlum to reach a settlement were rejected by Nippon Steel. Following many warnings to Nippon Steel to discontinue manufacture and import into the United States of electrical steels made by the Allegheny Ludlum process, the U.S. lawsuit was filed in 1989. The Japanese lawsuit was suspended by Allegheny Ludlum because it believed Japan's legal system placed undue burdens on foreigners.
 "As a world leader in specialty materials technology, we had no choice but to pursue this long and arduous legal process. Currently, Allegheny Ludlum holds about 200 U.S. patents, and this case sends a clear message that we will protect these valuable assets against all infringers," a spokesperson said.
 Grain oriented silicon steel, which possesses unique magnetic characteristics, is used in high efficiency electrical equipment, including power transformers, distribution transformers, large generators and a wide range of small transformers. The Allegheny Ludlum patent covered a specific melt composition for the steel, as well as various processes for heat treatment that further enhance magnetic qualities.
 Allegheny Ludlum is a major producer of stainless steels, silicon electrical steels and other high technology alloys. The company reported 1992 sales of $1.04 billion.
 /delval/
 -0- 10/5/93
 /CONTACT: Bert Delano, 412-394-2813 or Dan Greenfield, 412-394-3004, of Allegheny Ludlum/
 (ALS)


CO: Allegheny Ludlum Corporation; Nippon Steel Corporation ST: Pennsylvania IN: MNG SU:

CD -- PG009 -- 8806 10/05/93 10:52 EDT
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Publication:PR Newswire
Date:Oct 5, 1993
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