A few weeks back RIM received a patent for a fuel cell on a mobile device. It looks like their pursuit carries on as they have applied for more patents regarding fuel cells. The new patents are for the frame of the device and the "tank" itself, showing off a different design than we've seen before. Some pretty cool stuff here should it ever find its wat to market devices. We're not expecting these to show up in BlackBerry 10, but it is definitely something RIM looks interested in for the future.