Ciena Gets Favorable Verdict in Corvis Patent Case

April 29, 2003
Linthicum, MD. - April 29, 2003. Ciena Corp., a provider of intelligent optical networking systems and software, announced that a jury for U.S. District Court for the District of Delaware has issued its verdict in favor of Ciena in its litigation against Corvis Corporation for patent infringement.

Linthicum, MD. - April 29, 2003. Ciena Corp., a provider of intelligent optical networking systems and software, announced that a jury for U.S. District Court for the District of Delaware has issued its verdict in favor of Ciena in its litigation against Corvis Corporation for patent infringement.

The jury found that Corvis' CorWave system infringes Ciena's U.S. Patent No. 5,504,609 titled "WDM Optical Communication System With Remodulators," which covers optical communication technology pioneered by Ciena.

Ciena's suit alleged Corvis' infringement of four Ciena patents for optical transport technology.

In a February 2003 trial, a jury found that one of these patents was infringed and that two were not infringed, but the jury was deadlocked on the fourth patent. The recent verdict in favor of Ciena was the result of a retrial specifically for the fourth patent. Ciena plans to move for an injunction prohibiting sales of infringing products.


Ciena's intelligent optical networking systems form the core for networks and services worldwide. Ciena's LightWorks architecture enables next-generation optical services and changes the fundamental economics of service-provider networks by simplifying the network and reducing the cost to operate

For more information, visit www.Ciena.com

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