Just incase you missed yesterday's Dr Who intellectual property rights debate, here is a link below.
 A knitter knitted an Ood,  tried to sell the pattern on her website, and the BBC have asked her to remove it. It is a useful informative debate about brand protection and how we don't wait for permission to knit what we want but...... Don't try and sell somebody else's concept with out asking, or some big monster will come and get you!