Larson Door Patent Can Be Enforced, Court Rules

Law360, New York (July 30, 2010, 3:51 PM EDT) -- A U.S. district court has ruled that Aluminart Products Ltd., Canada's largest storm door maker, has not proven that a door technology patent held by Larson Manufacturing Co. of South Dakota Inc. is unenforceable, even though the court previously found Larson had engaged in inequitable conduct.

Complying with new guidance from an appeals court, Judge Lawrence Piersol of the U.S. District Court for the District of South Dakota ruled Wednesday that under a balancing test the patent was not unenforceable by reason of inequitable conduct....
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