The latest drone-related patent has been awarded by the United States Patent and Trademark Office (USPTO) to the HorseFly Truck Launched Drone Package Delivery System from the Workhorse Group. Numbers of companies are coming forward and getting on board and the drone delivery patents that have been awarded is going up as well. "We feel that the patented HorseFly truck launched drone package delivery system is the first major change to the last mile delivery process since the invention of the package delivery truck. Drivers appreciate the fact that the HorseFly system is fast, reliable, and efficient and last mile package delivery is changing, and the HorseFly delivery system is leading the way," said Steve Burns, Workhorse CEO. Studies have shown that last-mile drone delivery can be both more-efficient and greener than deliveries via truck.