A US jury handed Stratasys approximately $27.6 million in the Bambu Lab 3D printer patent verdict after finding that Bambu Lab infringed four 3D printing patents. The award covers past damages from a week-long trial in the US District Court for the Eastern District of Texas, Marshall Division. For buyers and sellers watching the dispute, the money is only one part of the risk. The case can still move into post-trial review and appeal.
Stratasys and Bambu Lab patents
Stratasys said the jury found all four patents presented at trial valid and infringed by the Bambu Lab defendants. Those defendants were Shanghai Lunkuo Technology Co. Ltd., Tuozhu Technology Limited, Shenzhen Tuozhu Technology Co. Ltd. and Bambulab Ltd. The four patents cover purge towers, extrusion-based layer deposition and force-detection systems. That means the verdict was not about one narrow feature. It reached several parts of the printing workflow.
US Patent No. 9,421,713 is titled “Additive Manufacturing Method for Printing Three-Dimensional Parts With Purge Towers.” US Patent No. 7,555,357 is titled “Method for Building Three-Dimensional Objects With Extrusion-Based Layered Deposition Systems.” US Patent No. 9,168,698 and US Patent No. 10,556,381 belong to the same patent family. They concern force sensing at the extruder or tool head, including detecting contact with the build platform and identifying deflection or operating errors. That is the part of a printer that can turn a failed print into scrap before a user notices.
Bambu Lab appeal plans
Bambu Lab told 3D Printing Industry that it disagreed with the verdict. In the same statement, it said, “We appreciate the time and effort of the jury in considering this matter. While we respect the judicial process, we disagree with the verdict reached in this case. The law provides Bambu with the right to seek post-trial review and to appeal, and Bambu intends to avail itself of these legal processes.” That puts the case back into the court process, where the verdict can still be challenged before any final judgment settles the money award.
The dispute has been running since Stratasys filed two lawsuits against Bambu Lab in August 2024. Stratasys also said the jury found all four patents valid and infringed, and it called the case the first of two patent infringement cases it filed. The company added, “Stratasys remains focused on delivering cutting-edge technologies to customers and protecting the intellectual property that underpins our innovation,” but it did not disclose how the approximately $27.6 million was divided between the four patents or the individual Bambu entities.
What remains open
Stratasys did not say whether it will seek an injunction restricting the sale of affected Bambu Lab products. That leaves the practical next step focused on court filings, not product packaging or store shelves. The verdict settles past damages, not the full shape of the dispute.
