The following is excerpted from a November 8, 2011 McDermott Will & Emery press release published by Business Wire:
Specifically, McDermott successfully persuaded the jury in the U.S. District Court for the Western District of Wisconsin to find in favor of Extreme Networks. The jury found no infringement by Extreme Networks for any of the dozen accused products in the case, Extreme Networks, Inc. v. Enterasys Networks, Inc.
The case dates from April 2005, when Enterasys Networks sued Extreme Networks for patent infringement in the U.S. District Court for the District of Massachusetts. Extreme Networks then filed suit against Enterasys in 2007 in the Western District of Wisconsin, alleging patent infringement relating to policy-based quality of service in computer networks. Enterasys Networks denied the infringement charges and counterclaimed for infringement of three of its own patents relating to network switches and routers.
Since that time, McDermott secured a series of infringement wins for Extreme Networks, which were then appealed by Enterasys Networks to the U.S. Court of Appeals for the Federal Circuit. On September 30, 2010, the Federal Circuit affirmed the findings of the Western District of Wisconsin's prior judgment on a jury verdict in Extreme Networks favor upholding the jury's finding that Enterasys Networks infringed three of Extreme Networks patents and that the patents are valid. The Federal Circuit remanded the case to the District Court for jury trial on one of Enterasys Networks patents, which resulted in last week’s victory.
Read the full press release here.