The EPO published patent EP3725028A1 for a system enabling secure cryptographic key sharing across blockchain networks. The invention is assigned to nChain Licensing AG with inventors Covaci, Madeo, Motylinski, and Vincent. The technology is classified under multiple IPC categories including H04L 9/08 (key distribution), H04L 9/32 (entity authentication), and H04W 12/04 (wireless security), with designations extended to 34 European member states.

Patent publications are informational records of intellectual property rights and create no compliance obligations for third parties. Companies developing blockchain or cryptographic key management systems should review the claims to assess potential infringement risks or licensing opportunities. No regulatory action or filing is required based on this publication alone.