I'm surprised this hasn't been posted before now.
Monster cable have threatened Blue Jeans Cable with several Design Patents. However, Kurt Denke
Blue Jeans founder and president is a former litigation attourny and isn't taing this one lying down.
There has been quite a bit written about this all over the place, but Audioholics has a couple of pretty good write ups, including the full response by Kurt Denke.
Monster Cable Sues Blue Jeans Cable — Audioholics Home Theater Reviews and News
Blue Jeans Cable Strikes Back - Response to Monster Cable — Audioholics Home Theater Reviews and News
The second one is a bit of a read, but very funny and well worth it