The closest thing that comes to mind is about companies that shift into patent licensing: > When you read of big companies filing patent suits against smaller

The closest thing that comes to mind is about companies that shift into patent licensing: > When you read of big companies filing patent suits against smaller ones, it's usually a big company on the way down, grasping at straws. For example, Unisys's attempts to enforce their patent on LZW compression. When you see a big company threatening patent suits, sell. When a company starts fighting over IP, it's a sign they've lost the real battle, for users. [http://paulgraham.com/softwarepatents.html http://paulgraham.com/softwarepatents.html]