Dallas-Fort Worth ranked No. 10 for patents out of 250 metros. Patents granted include: BNSF's railcar towing systems, Dell's software integrity validation using blockchain, Dolby's light spreading with blurring element in projector systems, G-CON's modular, self-contained, mobile cleanroom, Motus Labs' motorized gearbox mechanism, NCH's probiotic composition for animals and plants, NEC's facial recognition system, TI's real-time traffic sign recognition, USAA's methods for detecting and reducing distracted driving, and Zonal Systems' placing of virtual geographic zone markers