Erwin Härtwich, Yellow Sphere Innovations GmbH v.Knaus Tabbert AG
Düsseldorf (DE) Local Division · UPC-000804
This case concerns an infringement action and a counterclaim for revocation regarding European Patent EP 3 356 109 B1, which is in force in Germany, France, Ireland, Italy, and Slovenia. The plaintiffs, Yellow Sphere Innovations GmbH and Erwin Härtwich (along with third-party counterdefendant Alexander Christ), allege that the defendant, Knaus Tabbert AG, infringes the patent. The decision addresses two key legal questions: the interpretation of product-by-process claims and the jurisdiction over financial compensation claims for the use of a published European patent application.