MatrixOne Awarded Patent for New Technique for Deploying Enterprise Applications; Innovative Code Enables Seamless Product Lifecycle Management Integrations Regardless of a Customer's System Architecture

Business Wire, Sept 21, 2005

WESTFORD, Mass. -- MatrixOne, Inc. (NASDAQ: MONEE), a leading provider of collaborative product lifecycle management (PLM) solutions for the value chain(TM), today announced that the United States Patent and Trademark Office has awarded the company a patent for an "Interface Definition Language Compiler." Dave Tewksbary, vice president of advanced research for MatrixOne, is the inventor of the compiler.

The compiler - which can be leveraged for a number of enterprise software deployments - is software code that allows MatrixOne to effortlessly deploy its PLM solution in any environment regardless of a customer's system architecture.

"The patent validates our industry leading approach to aggressive R&D investment," said Mark F. O'Connell, president and CEO of MatrixOne. "This invention enables MatrixOne to support multiple customer environments without writing additional code for more effortless deployments and greater cost savings. The entire company congratulates Dave and his team for this distinguished recognition."

Tewksbary developed the source code when MatrixOne began leveraging the Java 2 Enterprise Edition (J2EE) for its PLM platform environment. The code enables MatrixOne's solution to interact with several computer architectures and codes, including Extensible Markup Language (XML), Enterprise Java Beans (EJB) and Remote Method Invocation (RMI).

About MatrixOne

MatrixOne, Inc. (NASDAQ: MONEE), a leading global provider of collaborative product lifecycle management (PLM) software and services, enables companies to accelerate product innovation to achieve top line revenue growth and improve bottom line profitability. With world-class PLM solutions and a commitment to customer success, MatrixOne is focused on helping companies across the automotive, aerospace & defense, consumer, machinery, medical device, semiconductor and high-tech industries solve their most challenging new product development and introduction problems. More than 800 companies use MatrixOne's solutions to drive business value and gain a competitive advantage, including industry leaders such as BAE Systems, Bosch, Comau, General Electric, Honda, Johnson Controls, Linde AG, NCR, Nokia, Philips, Porsche, Procter & Gamble, Sony Ericsson, STMicroelectronics and Toshiba. MatrixOne (www.matrixone.com) is headquartered in Westford, Massachusetts, with locations throughout North America, Europe and Asia-Pacific.

MatrixOne and the MatrixOne logo are registered trademarks and "a leading provider of collaborative product lifecycle management (PLM) solutions for the value chain" is a trademark of MatrixOne, Inc. All other trademarks and service marks are the property of their respective owners.

Forward-looking statements in this release are subject to risks and uncertainties that could cause our actual results to differ materially from those anticipated. Such statements may relate, among other things, to our plans, objectives and expected financial and operating results. The risks and uncertainties that may affect forward-looking statements include, among others: poor product sales, long sales cycles, difficulty developing new products, difficulty in relationships with vendors and partners, higher risk in international operations, difficulty assimilating future acquisitions, difficulty managing rapid growth, and increased competition. For more about the risks and uncertainties of our business, see our periodic and other S.E.C. filings.