I'm surprised that companies like Apple, with sizeable legal departments, didn't bother to do the research necessary to get the patent thrown out. Sure, I can s

I'm surprised that companies like Apple, with sizeable legal departments, didn't bother to do the research necessary to get the patent thrown out. Sure, I can see that they might pay royalties in the short term for the sake of expediency, but I wonder why they didn't also investigate getting the patent re-examined themselves...