Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
MOSAID Technologies, Inc. filed a patent infringement complaint [PDF] against Red Hat, IBM, Adobe, Alcatel-Lucent, Juniper Networks, NetApp and VMWare on August 10. The interesting thing about the complaint is that all of the defendants, except Red Hat, are sued under one patent, while Red Hat is the only defendant under the other patent. Why the actions under these different patents should proceed as a single action is beyond me, and I will be surprised if Red Hat doesn't look to sever the complaint and proceed alone.
MOSAID is a Canadian company and a non-producing entity (yes, go ahead and call them a troll if you would like). Its sole business is to acquire and enforce patents, although it does claim to have developed some of its own patented inventions.
The patent asserted against Red Hat is U.S. Patent No. 5,892,914, entitled "System For Accessing Distributed Data Cache At Each Network Node To Pass Requirements And Data."