bth nods an AppleInsider story on a patent troll who has gotten hold of fundamental Ethernet patents and is wielding them broadly. Three guesses which US Appeals Court the lawsuit was filed in. "A Texas company has targeted a number of technology companies, including Apple, in a new lawsuit regarding a handful of computer networking patents issued in the 1990s. ... 3Com Corporation was granted four patents from 1994 to 1998 pertaining to network adapters. Two deal with the automatic initiation of data transmission, and one addresses 'host indication optimization.' ... The company's Web site states that U.S. Ethernet Innovations was founded 'to continue 3Com Corporation's successful licensing program related to a portfolio of foundational patents in Ethernet technology.' A press release from the company states that it is the 'owner of the fundamental Ethernet technology developed and sold by 3Com Corporation in the 1990s,' suggesting it purchased the patents. ... In addition to Apple, the lawsuit names Acer, ASUS, Dell, Fujitsu, Gateway, Hewlett Packard, Sony, and Toshiba as defendants."