Sometimes companies buy IP , just to block it from being taken by other company.
Many times , they really do not intend to build products based upon that IP.
The interesting case here is that of Google buying Motorola Mobility to tkae hold of some 17000 patents, to counter the stiff competetion of Microsoft and Apple and later on selling the company to Lenovo at loss, but holding on dearly to those patents!
Drones are, in essence, flying autonomous vehicles. Pros and cons surrounding drones today might well foreshadow the debate over the development of self-driving cars. In the context of a strongly regulated aviation industry, "self-flying" drones pose a fresh challenge. How safe is it to fly drones in different environments? Should drones be required for visual line of sight – as are piloted airplanes? Join EE Times' Junko Yoshida as she moderates a panel of drone experts.