Patents shift hands almost as often as companies change their lunch menus. Mobile, software, and hardware patents are of particular importance as both deterrents and protection against the litany of lawsuits, frivolous or not, that chase big tech companies on a regular basis. Companies like Apple, Microsoft, and Motorola (who just sold 17,000 patents as part of their deal with Google) stockpile patents, spending lots of money in order to save lots of money. It’s much like insurance – you pay a little now over time to prevent the big hits from coming all at once.. This graphic by Visual.ly attempts…