Acacia's DMT Patent Suffers Rare Defeat In Court

Law360, New York (December 8, 2005, 12:00 AM EST) -- Patent holding company Acacia Research Corp. received a blow in federal court this week when several claims in its heavily-litigated Digital Media Transmission (DMT) patents were found to be indefinite.

The company’s subsidiary, Acacia Media Technology Corp., asserted the patent portfolio beginning in February 2003 against a slew of internet companies, mostly pornography sites. A second volley the following year targeted major cable providers and satellite companies.

The litigation, against no less than 45 defendants, generated numerous DMT licensing agreements, but the recent development may call...
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