Dallas-Fort Worth ranked No. 10 for patents out of 250 metros. Patents granted include: AXIP Energy Services' carbon dioxide capture from exhaust gas, Bank of America's intelligent cash handling, Capital One's vehicle identification driven by AR, DFB Soria's topical treatment for skin malignancies using nanoparticles of taxanes, Noodle.ai's artificial intelligence platform, Pacesetter's communication session between an implantable medical device and an external device, RailPros' automated railroad signage device, Tango Networks' enabling call originations using SMS and hotline capabilities, and Textron's distributed battery bank for ducted-rotor aircraft..