To begin a review of a case, a Texas Patent Litigation Lawyer needs to know 1) the name or names of the owners of a patent or patents which have been infringed, 2) the patent number of each patent which has been infringed, 3) the names of each potential defendent who has infringed on the patent, 4) what evidence there is of the infringement, and 5) the approximate amount of damages caused by the infringement.