I can see how they were able to get a patent for an LED unit with a controller but they haven't got a hope in hell of being able to patent all LED units for aquariums as, at least to my knowledge, it is prior public knowledge. If they applied for a patent of this back then, this patent would have likely been granted by now.
A few threads that come to mind are:
http://www.nano-reef.com/forums/inde...owtopic=200335
http://www.nano-reef.com/forums/inde...owtopic=138608
Contact the author of the first thread. He is an LED aquarium lighting guru and could give you a plethora of info.