Infringement proceedings outside Germany do not provide justification for a negative declaratory action in Germany regarding the same European patent
The Higher Regional Court Düsseldorf has ruled in its decision of 20 March 2014 (docket number 12 W 8.14) that an explicit allegation of entitlement to a national part of a European patent, e.g. by sending a warning letter or the filing of a court action, does not include an implicit allegation of entitlement (stillschweigende…