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Presstek Alleges Patent Infringement

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Robert C. Pini

Presstek Inc., a maker of laser-based computer-to-press print heads, has notified Creo Products Inc. of Burnaby, British Columbia, Canada, that it is infringing Presstek's patents covering on-press imaging of printing plates. Presstek has not filed suit, but the dispute has been brewing since Creo asked the US Patent and Trademark Office to re-examine one of the patents. A second Presstek patent was re-examined after an anonymous request. The patent infringement dispute could become a concern for companies that supply the laser diodes used in the imaging equipment. Presstek uses laser...Read full article

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