The patent applications reveal little of exactly how or where the fuel cell will be implemented. The description and diagrams submitted by Apple detail implementations with the capability to recharge a smaller battery, as well as get refuelled by it. Unlike vehicular hydrogen cells, sealed implementations for consumer electronics cannot be refuelled easily. Therefore, such cells have to be regenerated by using the batteries to reverse the chemical process. When perfected, this technology may be used in Apple's future devices to deliver unprecedented battery life.
The documents talk of fuel cells that "can potentially enable continued operation of portable electronic devices for days or even weeks without refuelling". While the idea may sound utopian, many others have been working on such solutions for years without success. The heat generated by these devices makes hydrogen or methanol-based fuel cells highly volatile. Also, since water is a common byproduct of the process, fuel cells require water outlets. When employed in portable devices, this would cause users to wet their pants, so to speak.
rightly found out, looks like those lazy apple buggers will seldom work on inventing the technology, but just sue anyone who actually works hard and invents the technology and then steal the technology from them.