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Microsoft Corp. did not infringe on any of the patents asserted by Research Corporation Technologies (RCT) in its lawsuit against the software company, a federal court in Arizona has ruled.
According to a final ruling issued Jan. 27, 2006, by the U.S. District Court for the District of Arizona, the court found that three of six patents asserted by RCT were “unenforceable due to the patent applicants’ inequitable conduct in withholding material information from the Patent Office with an intent to deceive the Patent Office.”
Today’s decision follows a previous ruling in April 2005 in which the same court found that all claims asserted by RCT in three other patents were invalid.
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