(criminal) No ethics? No surprise...!

Good business plan: get on an international committee (in this case the IPv6 committee), steal ideas, patent them, then -- when the technology starts to become a standard -- tell large users you have a patent on it.

Microsoft criticised for IP address configuration patent - ZDNet UK News

These include documents from the IPv6 committee of the IETF, known as RFCs. The Microsoft employees named as the inventors of the patent were on the IPv6 committee, according to Ravicher.