It's hard to see any company as innovative in the tablet market except Apple as of 2011. Tablets have been around for many years, including the earlier Apple models. None of them succeeded except the Palm Pilot for awhile, and now the iPad. And arguably, the Pilot was more a predecessor to today's phones than something like the iPad.
It's much easier to look at finished products (sales figures and user feedback) to see market success than an income statement. Patent numbers certainly mean nothing to the market. I think you are trying to look from a perspective that is not only different than some of these other posters, but is also ridiculously hard to actually prove anything. That's why R&D is kept separate, companies don't want to claim it is part of the actual mfgr of a product, which would upset its profit.