The team at Unified IP Services is using Pearl to identify and chart prior art against a patent owned by Stratacor LLC, an NPE and entity of Ambient Analytics LLC. Unified Patents, the top requester of ex parte reexaminations in recent years, will likely challenge its validity. The patent is generally related to enhancing targeted advertising or directing users to similar content. Stratacor LLC has sued Alibaba Group Holding Limited. For more details contact info@unifiedpatents.com.