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3D Systems Defends Laser-Sintering Patent
Apr 2002
VALENCIA, Calif., April 23 -- 3D Systems Corp. has filed court papers seeking injunctions defending its laser-sintering patent rights.

An action was filed in Federal District Court in Texas against Advanced Manufacturing Engineering Systems (AMES) of Nevada, Iowa. 3D Systems asserts that AMES is infringing its patent by using laser-sintering powder materials supplied by Electro Optical Systems (EOS) GmbH of Planegg, Germany, and its North American subsidiary, EOS of North America Inc. 3D Systems' patents prohibit the use in the US of EOS powder materials in laser-sintering systems currently sold by 3D Systems or previously by DTM Corp., which it acquired last year.

In the ongoing EOS vs. DTM/3D Systems action in Federal District Court in California, 3D Systems filed a motion seeking a preliminary injunction to stop EOS' sales of laser-sintering powders in the US. In another action, 3D Systems filed a patent infringement suit seeking damages and an injunction against EOS NA for the sale of laser-sintering powders in the US.

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