Carbon's Foundational Dual-Cure 3D Printing Patent Upheld on Appeal at the European Patent Office

European Patent Office Board of Appeal upheld Carbon's foundational dual-cure 3D printing patent (EP 3158400), rejecting a competitor's challenge. The decision affirmed the broadest claim and restored additional dependent claims previously removed during opposition proceedings. Carbon's dual-cure technology combines light-based printing with thermal curing for high-performance manufacturing applications across automotive, dental, medical, and consumer sectors. Carbon was represented by Marks & Clerk (Mairi Rudkin, Donald McNab) and globally by Myers Bigel and Winston Taylor.