Home

Carpenter Tech files suit against Allegheny Tech

By Associated Press
June 23, 2008 | Comments (0)

Recs

0

Specialty metals maker Carpenter Technology Corp. said Monday that it filed a lawsuit against Allegheny Technologies Inc. alleging two U.S. patents Allegheny holds are not valid.

The suit, which is related to two patents for a method of producing and making 30-inch large-diameter 718 ingots of nickel-based alloys, was filed in the U.S. District Court for the Eastern District of Pennsylvania in Philadelphia.

Carpenter said it is seeking a declaration that it has not infringed on or is not infringing on the patents, and an order that the patents are not valid.

Carpenter makes and sells various sized ingots of a nickel base 718 alloy at its Reading, Pa., plant.

Dan Greenfield, a spokesman for Allegheny, said the company does not comment on litigation.

Carpenter shares fell 11 cents in after-hours trading, after finishing regular trading up $1.07 at $46.60.

Allegheny shares fell 2 cents in after-hours trading, after finishing regular trading up 73 cents at $63.37.

Comments from our Foolish Readers

Help us keep this a respectfully Foolish area! This is a place for our readers to discuss, debate, and learn more about the Foolish investing topic you read about above. Help us keep it clean and safe. If you believe a comment is abusive or otherwise violates our Fool's Rules, please report it via the Report this Comment icon found on every comment.

Be the first one to comment on this article.

Compare Brokers

DocumentId: 670547, ~/articles/articlehandler.aspx, 12/2/2008 3:12:37 AM,

Sign up for FREE Motley Fool site access to keep reading:

“Carpenter Tech files suit against Allegheny Tech”

Signing up allows you to comment on articles and on the discussion boards.

It's completely FREE and will take only 10 seconds.

Privacy / Legal Information

We will use your email address only to keep you informed about updates to our web site and about other products and services that we think might interest you. The Motley Fool respects your privacy. Please read our Privacy Statement

Report This Comment

Use this area to report a comment that you believe is in violation of the community guidelines. Our team will review the entry and take any appropriate action.