A Texas-based patent troll has sued Apple for patent infringement in the five-year-old Numbers spreadsheet software package originally in iWork. Notoriously patent-holder friendly US District Court for the Eastern District of Texas, Tyler Division is the unsurprising venue for the suit. Data Engine Technologies, LLC claims the software infringes on a patent on a "improved spreadsheet interface with user-familiar objects" such as embedded graphics and charts in the spreadsheet.