Patent Wars: How Many More Tech Giants Will Clash?

AllThingsD has conducted an exclusive interview with Facebook Inc (NASDAQ:FB) COO Sheryl Sandberg and Yahoo! Inc.  (NASDAQ:YHOO)’s interim CEO Ross Levinsohn, and from the sound of it, it looks like both companies have not only buried the silly hatchet but are also set on becoming best buddies. As we reported yesterday, Facebook and Yahoo! have agreed to end the patent war and develop a strategic partnership that benefits both companies. Striking a partnership from a patent dispute is not what we witness everyday, especially not when the big guns are fighting. Both Facebook and Yahoo! have had their share of trouble this year,…