At least, in the digital world.

iTunes allegedly infringes on video processing patents, see here:

http://blogs.barrons.com/techtraderdaily/2010/09/22/apple-multi-format-inc-alleges-itunes-movies-infringe-patent/

While this shouldn’t cause major problems for AAPL, it is yet another annoyance in the business world as a result of being able to patent anything in the software world.