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Demaco Corp. v. F. Von Langsdorff Licensing Ltd.

851 F.2d 1387, 7 U.S.P.Q.2d 1222 (1988)

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Demaco Corp. v. F. Von Langsdorff Licensing Ltd.

United States Court of Appeals for the Federal Circuit
851 F.2d 1387, 7 U.S.P.Q.2d 1222 (1988)

Facts

Demaco Corporation (plaintiff) held a patent on a particular type of paving stone. Demaco brought an infringement action against F. Von Langsdorff Bauverfahren GmbH (defendant) and F. Von Langsdorff Licensing Limited (defendant) in federal district court. The court ruled that Demaco’s patent was invalid on the ground of obviousness because the invention was simple in design and provided no clear structural advantage over other types of paving stones. Demaco appealed to the United States Court of Appeals for the Federal Circuit.

Rule of Law

Issue

Holding and Reasoning (Newman, J.)

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