USPTO Validates Patent Behind CMU's $1.5B Marvell Win

By Beth Winegarner (January 6, 2015, 7:02 PM EST) -- Carnegie Mellon University scored a victory Monday when the U.S. Patent and Trademark Office affirmed the validity of a CMU disk drive patent that a Pennsylvania federal jury found Marvell Technology Group Ltd. had infringed, which led to a $1.54 billion judgment the company is now appealing.

In a brief ruling on Marvell's request for re-examination of claims 1 and 2 of CMU's U.S. Patent Number 6,438,180, the patent office found that both claims were valid and not anticipated by prior inventions. In September, the USPTO found that the other CMU patent Marvell was found to infringe was also valid, according...

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