Go to any tech retail outlet, close your eyes and randomly touch any of the products they sell. I'm sure IBM has at least one patent covering it. The fact that they were here for a very long time and do a lot of pure science research means they are ahead of patent game than most.
Here's one story about Sun shakedown in 80's http://www.osnews.com/story/24987/Microsoft_s_Android_Shaked...