Dallas-Fort Worth ranked No. 11 for patents out of 250 metros. Patents granted include: No7-Eleven's object assignment during image tracking, Air Distribution Technologies' floor air diffuser, Alight Solutions' more-intelligent health care advisor, BNSF's avalanche slide detection , Cornerstone Automation Systems' secure portable pill canister for order fulfillment, GHW Solutions' comprehensive dry flood proofing system to mitigate inland flooding risk, Globus Medical's intervertebral fusion implant, Lennox's refrigerant leak detection, Meadow Burke's lifting and leveling insert for a precast concrete slab, Raytheon's architectures for vehicle tolling, Textron Innovations' angle-of-attack flight computer systems, and TouchPay Holdings' machines and process for managing a service account.