Yes. I didn't mean hardware that others made. I don't know what patents were violated and to what extent someone can "patent" something, but what I meant by "architecture" I meant the build of the iPad or iPhone. The design. Not just how it looks on the outside, but the way components are arranged inside. Like not keeping the GPU, which can get quite hot, next to something that is sensitive to heat. I don't know if you can patent the arrangement, but I'm guessing it's something along those lines, but much more complicated.
http://www.pcmag.com/article2/0,2817,2388595,00.asp
Apple writes software as well and shares it with others. If any of that code is used...anywhere... they have to right to take action if it was used in a way that was not intended or disclosed to Apple.