IBM Unit Red Hat Keeps Win in Digital Storage Patent Dispute (2)

The Federal Circuit mostly ruled in favor of an International Business Machines Corp. subsidiary in a dispute over digital storage technology, upholding a lower court’s interpretation of parts of a patent that led to a finding of noninfringement.

Judge Kara Stoll, writing for a US Court of Appeals for the Federal Circuit panel, agreed that Red Hat Inc.'s software tools for creating and re-sizing virtual disk drives didn’t infringe US Patent No. 6,718,436, which was licensed to Sequoia Technology LLC.

The appeals court affirmed Judge Leonard Stark’s finding of noninfringement based on his claim construction for the terms ...