i see two at the patent office so i will give you both. Patent 9730911 Aug 15, 2017 https://assignment.uspto.gov/patent/index.html#/patent/search/resultAbstract?id=9730911&type=patNum Assignment abstract of title for Application 15676407 https://assignment.uspto.gov/patent/index.html#/patent/search/resultAbstract?id=20170360745&type=publNum here is the cover sheet for the assignment abstract for Application 15676407 http://legacy-assignments.uspto.gov/assignments/assignment-pat-43400-634.pdf