Red Hat (1:18-cv-02027) has filed an action in the District of Delaware seeking declaratory judgments that neither it nor its customers infringe a patent asserted by Sequoia Technology LLC in earlier cases brought against Dell (EMC), Hitachi, HP Enterprise (HPE), and Super Micro Computer. Red Hat pleads that in its complaints, Sequoia pointed to Red Hat Enterprise Linux (RHEL) materials to support its infringement allegations against those defendants, giving rise to a reasonable apprehension of suit. Sequoia brought those cases as the exclusive licensee of the patent-in-suit, which generally relates to managing the storage of metadata. USPTO records identify Electronics and Telecommunications Research Institute (ETRI) as the patent’s owner.