Appeals Court Rules Invisalign Patents Invalid

Law360 (August 31, 2006, 12:00 AM EDT) -- In a major reversal of a lower court's decision, the U.S. Court of Appeals for the Federal Circuit ruled on Thursday that key patents of Align Technology's for Invisalign clear orthodontic braces were obvious, and therefore invalid.

The Federal Circuit found two patents invalid, reversing a previous court decision by the United States District Court for the Central District of California that upheld the validity of the patents in the suit between Align and rival orthodontic maker Ormco Corp.

The district court granted summary judgment to Align in the suit brought by Ormco, but the Federal Circuit ruled that all six...

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