Cadfan said:I'm pretty sure the item constructed has to be constructed out of planar components.
One of the ways to get a patent in an area where there's a lot of prior work is to make your patent very, very specific. Perhaps this is what they are doing?
It's worth remembering that patents take time to be granted - it was some years after Magic made its debut that the patent finally went through, though it was applied for much earlier.
Five years it took for Wizards to get their patent on this; 2002 was when they applied; 2004 is when Pirates of the Spanish Main came out from WizKids.
Cheers!