The ruling was released on Monday by the Unified Patent Court in Mannheim, Germany.
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IPG Photonics, a Marlborough laser manufacturer, has again been found by a German patent court to have infringed on a patent owned by German manufacturer TRUMPF SE + Co. KG through certain uses and designs of its lasers.
The ruling was released on Monday by the Unified Patent Court in Mannheim, Germany. It stated IPG had infringed on a TRUMPF-owned European patent in the use and design of specific adjustable mode beam lasers, such as those used in high-speed welding and cutting, according to a Monday IPG press release.
The ruling comes after the German UPC held hearings for two separate patent-infringement lawsuits in January filed by TRUMPF against IPG. The UPC released its verdict that IPG had infringed on the first patent in February, announcing at the time it would release its second verdict in March.
TRUMPF originally filed two separate patent-infringement lawsuits against IPG in December 2024.
“IPG respectfully disagrees with the decision and plans to file an appeal with the UPC Court of Appeal and pursue other measures available to it,” IPG said in the release.
The impacted AMB lasers have been sold throughout Germany, France, and Italy, totaling fewer than 1% of IPG’s total sales.
IPG is implementing contingency measures as a result of the ruling. The manufacturer may face penalties, including an injunction, recalls, and damages, for its infringement. Penalty specifics will be determined at a later time.
With 1,365 local employees, IPG is the sixth-largest manufacturer in Central Massachusetts when ranked by data provided to WBJ’s Research Department.
In fiscal 2025, IPG generated just over $1 billion in net sales, a 2.7% increase from 2024, according to a Feb. 23 filing with the U.S. Securities and Exchange Commission.
Mica Kanner-Mascolo is a staff writer at Worcester Business Journal, who primarily covers the healthcare, manufacturing, and higher education industries.
