Mentor Graphics Files Patent Infringement Suit against EVE

WILSONVILLE, Ore., August 17, 2012—Mentor Graphics Corporation (NASDAQ: MENT) today announced it had filed another patent infringement suit against EVE in the U.S. Federal District Court for the District of Oregon.

The suit alleges that EVE products violate Mentor Graphics’ patent rights under United States Patent No. 6,947,882, entitled “Regionally Time Multiplexed System” issued September 20, 2005, and seeks to recover damages and to bar the manufacture and sale of the infringing products.

“As we continue to learn more about EVE’s products, and discover infringement of our intellectual property,” said Tom Evans, corporate intellectual property counsel for Mentor Graphics, “we will continue to aggressively protect that intellectual property.”

About Mentor Graphics

Mentor Graphics Corporation is a world leader in electronic hardware and software design solutions, providing products, consulting services and award-winning support for the world’s most successful electronic, semiconductor and systems companies. Established in 1981, the company reported revenues in the last fiscal year of about $1,015 million. Corporate headquarters are located at 8005 S.W. Boeckman Road, Wilsonville, Oregon 97070-7777. World Wide Web site: http://www.mentor.com.