Larson Door Patent Can Be Enforced, Court Rules

By James Armstrong (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....

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