CHICAGO — Husky Injection Molding Systems Ltd. issued a formal response Wednesday to the patent infringement lawsuit filed against its two-platen injection press. A competitor, HPM Corp., filed the suit last week in Germany. Husky denied that its E-Series machine violates the German patent.
The suit covers two-platen injection molding machinery technology, specifically a German patent held by Hemscheidt Maschinentechnik Schwerin GmbH & Co. in Schwerin, Germany. HPM of Mount Gilead, Ohio, owns Hemscheidt.
HPM filed the suit in a district court in Dusseldorf, Germany, on June 12 — just four days before NPE began. Husky officials at NPE were not informed about the lawsuit until an hour after the show closed on Monday, when their company lawyer contacted them, according to Michael Urquhart, vice president of service and sales for Husky of Bolton, Ontario. They got it translated from German into English, then issued their response Wednesday.
The German suit involves aspects of the two-platen machine, including the locking mechanism. HPM contends that Husky's E-Series machine, being unveiled this week in Chicago, violates a Hemscheidt patent. HPM is seeking an injunction barring the sale, within Germany, of the E machine.
Urquhart said: ``The locking mechanism that we use is significantly different.''
Urquhart said Husky officials were surprised by the suit, reported in Plastics News' Tuesday show daily. HPM did not inform Husky of the suit in advance, he said.
Urquhart issued the following statement: ``Our official position is that we are at a loss to understand why HPM would do this, for the following reasons. First of all, there are significant differences between their patent and the technology we are using. We do not feel that we in any way infringe. We've had our lawyers look at it, as well as our technology people.''
Urquhart also said the German lawsuit ``does not in any way affect any other countries in the world.''
HPM was acquired last year by Stadco Inc., an aerospace manufacturer in Los Angeles. Neil Kadisha, Stadco's president and chief executive officer, said proof HPM is confident about its case is a German law that requires the loser to pay all legal fees for both sides.