What about all the components inside the machines and network protocols? Believe me, MS will find something to sue over, even if they don't really own whatever idea they're suing over. Most of what people know about law is some poor slob suing the deep pockets of this world. The truth is that the deep pockets throw around a lot of legal weight, and sue to make examples. McDonald's is infamous for suing anybody for using the Scottish surname prefix "Mc" on their own product.
Hopefully, this will reduce the lawsuits across the board.