And for some recent examples : what about Popcorn Time ? Or PeerTube ?
EDIT : Oh, I guess that most of those are technically not "streaming", but "watching while downloading" like YouTube or FTP+VLC ?
https://en.wikipedia.org/wiki/VirnetX
> Separately, in December 2014, Microsoft and VirnetX settled patent disputes over Skype technology for $23 million.