The Unified Patent Court in Mannheim, Germany, identified the infringement in specific designs of IPG’s adjustable mode beam lasers.
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A German patent court has ruled Marlborough laser manufacturer IPG Photonics infringed upon a patent belonging to German manufacturer TRUMPF SE + Co. KG through the production of certain IPG lasers.
The Unified Patent Court in Mannheim, Germany, identified the infringement in specific designs of IPG’s adjustable mode beam lasers, ones used in high-speed welding and cutting. The company’s AMB lasers have been distributed in countries including Germany, France, and Italy, according to a Wednesday press release from IPG.
“IPG respectfully disagrees with the decision and plans to file an appeal with the UPC Court of Appeal,” IPG said in the release.
As a result of the ruling, IPG is executing contingency measures for its AMB customers. Further legal consequences, including injunctions, recalls, and damages to TRUMPF, will be determined at a later date.
WBJ has reached out to IPG for comment and specifics of its planned contingency measures.
IPG reports the AMB lasers in question account for fewer than 1% of its total sales.
The court’s decision comes more than two years after affiliates of TRUMPF filed two separate patent law infringements against IPG in regards to its AMB lasers in December 2024, according to IPG’s Feb. 20, 2025, filing with the SEC. Hearings for both lawsuits were held in January of this year, and the second lawsuit’s decision is set to be released by March 16.
As of Wednesday morning, the Mannheim Unified Patent Court has yet to publish the first case’s court records.
Mica Kanner-Mascolo is a staff writer at Worcester Business Journal, who primarily covers the healthcare, manufacturing, and higher education industries.
