Dallas-Fort Worth ranked No. 11 for patent activity out of 250 metros. Patents granted include: •  Bank of America’s authorization of a user in a virtual reality environment •  ATT’s distributed forwarding service •  Freeflight Acquisition’s quick-mount detachable antenna •  Imagine Communications’ distributed ledger platform •  Service King’s auto repair systems including 3D printed parts •  Siemens intelligent 3D printer •  Johnson & Johnson’s pupil-only photochromic contact lenses •  Knightscope’s autonomous parking monitor Dallas Invents is a weekly look at U.S. patents granted with a connection to the Dallas-Fort Worth-Arlington metro area. Listings include patents granted to local assignees and/or those with a North Texas inventor. Patent activity can be an indicator of future economic growth, as well as the development of emerging markets and talent attraction. By tracking both inventors and assignees in the region, we aim to provide a broader view of the region’s inventive activity. Listings are organized by Cooperative Patent Classification (CPC).  Texas Instruments (Dallas) 18 Futurewei Technologies, Inc. (Plano) 6 Poly-Ame...