In just over three months, Patent Armory Inc. has sued more than 40 defendants in district courts in Delaware, New Jersey, or Texas. This past week, cases against Alphabet (Google) (6:23-cv-00575), Avis Budget Group (6:23-cv-00574), Cruise America Travel (1:23-cv-00853), Enterprise Holdings (6:23-cv-00582), Hertz (6:23-cv-00587), Microsoft (LinkedIn) (6:23-cv-00574), MBFG (Rent-A-Wreck of America) (2:23-cv-04377), Penske (Penske Truck Leasing) (6:23-cv-00583), Ryder System (6:23-cv-00584), Sixt Rent a Car (6:23-cv-00585), Sound United (2:23-cv-04379), U-Haul (6:23-cv-00588), and United Rentals (6:23-cv-00589) were filed across those districts. Patent Armory trains patents from disparate origins on the provision of certain audio devices, search engines, and/or customer service systems.