Microsoft Wins Patent Infringement Appeal

By | March 3, 2005

A federal appeals court has overturned yesterday the previous ruling in the Eolas-Microsoft patent infringement case given by a district court in 2003.

According to the appeals court ruling, the original verdict of an Illinois jury, which ordered Microsoft to pay $521 million to Eolas Technologies, Inc. and the University of California, had ignored Microsoft´s arguments on Eolas´s patent validity.

Eolas claims that Microsoft´s Internet Explorer had infringed its technology by running certain types of applets on Web pages. Microsoft´s defence is based on preexisting inventions that may invalidate the whole patent.

The case will now return to the district court for a retrial giving the parties some time to discuss a possible settlement.

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