Quantum Sues Riverbed

SAN JOSE, Calif. -- Quantum Corp. (NYSE:QTM) , the leading global specialist in backup, recovery and archive, today announced it has filed a patent infringement lawsuit in the U.S. District Court in the Northern District of California against Riverbed Technology, Inc. (NASDAQ: RVBD) . According to the complaint, Riverbed has infringed, and continues to infringe, a Quantum patent by selling products that employ a method of data de-duplication covered by this patent. The Quantum patent at issue, U.S. 5,990,810 ("the '810 patent"), was granted in November 1999 and is a pioneering patent in data de-duplication.

"Over the last eight months, we have worked to engage Riverbed in an effort to resolve this issue directly," said Shawn Hall, vice president and general counsel of Quantum. "Unfortunately, this effort has been unsuccessful, and we felt we had no choice but to initiate legal action to protect our intellectual property in data de-duplication."

Data de-duplication technology, which eliminates redundant data for storage on disk and transmission via networks, is fundamentally changing the storage and networking landscape. It dramatically increases effective disk capacity over that of conventional disk, thereby enabling users to retain data on fast recovery disk for months instead of days, and significantly reduces the bandwidth needed to transmit such data between sites.

Reinforcing Quantum's commitment to protecting its intellectual property in the '810 patent, over the past year it has concluded confidential license agreements with other companies that encompass this pioneering patent.

Quantum Corp. (NYSE: QTM)Riverbed Technology Inc.