LizardTech files appeal in patent lawsuit.(NEWSLINK)(case against Earth Resource Mapping Inc. )(Brief Article)

GEO World, December, 2004

Seattle-based LizardTech Inc. filed an appeal in its ongoing patent-infringement lawsuit against Perth, Australia-based Earth Resource Mapping (ER Mapper) in the U.S. Court of Appeals.

In 1999, LizardTech filed a patent-infringement lawsuit in U.S. District Court because the company asserts that the ECW image-compression technology produced by ER Mapper infringed on one of LizardTech's most important patents. The patent in question (#5,710,835) relates to wavelet encoding of large images and how computer memory is utilized to achieve effective results during this operation, which is of particular interest in the geospatial market. The patent was developed by Los Alamos National Laboratories and licensed by LizardTech.

A judge in U.S. District Court...

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