Law360, New York (November 17, 2009, 2:23 PM ET) -- Sidergas SpA of Italy has fired back in Lincoln Electric Co.'s suit over welding wire equipment patents, rebuking allegations of infringement and saying Lincoln committed fraud in its patent applications.
On Monday, Sidergas filed its response and affirmative defenses to the claims brought by Lincoln Electric, alleging Lincoln committed fraud by prosecuting applications for patents that it knew to be invalid by failing to disclose prior art to the U.S. Patent and Trademark Office.
“Lincoln has commenced and maintained lawsuits and administrative proceedings asserting multiple claims...
Sidergas Accuses Lincoln Of Fraud In ITC Patent Case
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