Apple continues to show interest in using hydrogen fuel cell technology, as evidenced in its latest patent filing. On Thursday, the United States Patent and Trademark Office published a patent titled "Fuel Cell System to Power a Portable Computing Device."
The invention appears to be, at least initially, targeted at the MacBook, as the filing mentions MagSafe several times. But last month, the British firm Intelligent Energy proved the tech can be shrunken down, by showing off an iPhone with a hydrogen fuel cell.