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Microsoft Corp.

Microsoft Patent-Infringement Judgment Overturned, Remanded for Re-Examination

Strategic Insights

— 1 min read

A US appeals court has overturned a landmark patent-infringement judgment against Microsoft, worth $521 million, and remanded it back to a lower court for re-examination. The decision follows hot on the heels of another patent claim being thrown out by a federal judge, highlighting the ongoing uncertainty surrounding patent law and its implications for the tech industry. The patent in question governs a fundamental piece of internet browser technology, allowing users to launch software plug-ins from within a browser.

Key Takeaways:

  • The US appeals court overturned a $521 million patent-infringement judgment against Microsoft, citing incorrect rulings on two matters of law.
  • The lower court had refused to let Microsoft present evidence of prior art, a browser called Viola, which pre-dated the Eolas technology.
  • The appeals court ordered the lower court to re-examine the case, including Viola's existence and its potential to invalidate the patent.
  • Eolas, the company behind the patent, claimed substantial differences between its technology and Viola, but the court had ruled against Microsoft's attempts to present this evidence.
  • The case was brought by the University of California and Eolas Technologies, a company co-founded by Michael Doyle, the former head of the university's academic computing center.
  • The patent's invalidation could have significant implications for website developers, who rely on existing technology, and has been a subject of concern for The World Wide Web Consortium, a standards group.

Statistics:

  • $521 million: The original patent-infringement judgment against Microsoft.
  • 2003: The year the US court ruled that Microsoft had infringed the patent.
  • 2: The number of matters of law that the appeals court concluded the lower court had ruled incorrectly on.
  • 1: The number of instances where Eolas claimed substantial differences between Viola and its own technology.

Sources:

  • The Financial Times
  • The World Wide Web Consortium
  • The University of California
  • Eolas Technologies

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