The team at Unified is using Pearl to identify and chart prior art against a patent owned by UBQS-IP LLC, an NPE and entity of Pueblo Nuevo LLC. Unified Patents, the top requester of ex parte reexaminations in recent years, will likely challenge its validity. The patent is generally related to a decentralized system allowing multiple users to edit the same document. UBQS-IP has sued Egnyte, Atlassian, Notion Labs, and Dropbox. For more details contact info@unifiedpatents.com.