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3D Systems to Defend Sinterstation Products Against Patent Infringement Claims

(August 23, 2001)
3D Systems Corp. today announced it intends to file a response in opposition to a motion requesting an injunction in a lawsuit filed by EOS GmbH of Planegg, Germany, against DTM Corp.

In filing its motion, EOS requested the court stop the sale, within the United States, of Sinterstation systems pending final resolution of the suit that EOS initiated in December 2000 prior to 3D Systems' acquisition of DTM Corp. The suit asserts infringement of patents for laser sintering licensed by 3D Systems to EOS.

It is 3D Systems' opinion that the request is meritless and not sustainable. 3D Systems intends to join with DTM as a named defendant in the action. 3D Systems and DTM will respond within the required time.

Sales for the Sinterstation product line will continue unaffected.

The Sinterstation product line originally was developed and currently is distributed by DTM Corp. The systems are now included in 3D Systems' product offering with the recent acquisition of DTM Corp. by 3D Systems.

3D Systems provides solid imaging products and services that substantially reduce the time and cost required to design, test and manufacture products. The company's systems utilize patented technologies that create physical objects from digital input.

3D Systems currently offers the ThermoJet(R) office printer and SLA(R) industrial systems, which include proprietary software and materials. Product pricing in the U.S. begins at $49,995 for the company's entry-level printer and extends up to $799,000 for its feature-rich industrial SLA 7000 system. The company also licenses the 3D Keltool(R) process, a complementary application that produces injection molding and die casting inserts from SLA system master patterns.

In February 2001, 3D Systems announced it acquired OptoForm, a French company that has developed direct composite manufacturing systems that use paste materials. In April 2001, the company announced the signing of a definitive merger agreement to purchase DTM Corp., and it expects to complete the merger this month.

Based in Valencia, 3D Systems was founded in 1986 and is recognized as a world technology leader in solid imaging. For additional information, visit the company's Web site at or phone 888/337-9786, ext. 787. For an investor packet, call the company's shareholder communications service at 800/757-1799.

About DTM Corp.

DTM develops, manufactures and markets advanced rapid prototyping and manufacturing systems, including the Sinterstation 2500plus and Vanguard systems. A growing number of manufacturers and service bureaus worldwide use these systems to rapidly create 3-D prototypes, parts, molds, tooling and casting patterns.

All Sinterstation SLS systems utilize a process called selective laser sintering to create 3-D objects from computer-aided design (CAD) data. The Sinterstation product line creates the part in a matter of hours using a CO2 laser to fuse together layers of powdered plastic, metal or ceramic powders. The results are durable 3-D parts produced in a fraction of the time it would typically take using other traditional methods.

Among the companies currently using Sinterstation systems are manufacturers such as BMW, Boeing, Pitney Bowes, Rockwell International, Volvo Penta and others. In addition, numerous service bureaus throughout the world include Sinterstation systems in their offerings to companies with only an occasional need for rapidly produced functional prototypes and parts. Parts and prototypes made on Sinterstation systems also are used in non-industrial settings, such as science and medicine.

For more information on DTM's systems, customers and applications, visit the company's Web site at

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Related Keywords:Sinterstation, 3D Systems Corp.

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