Federal Circuit Upholds PTAB Decision Invalidating CAO Lighting Patent Claims

By Editorial Team

The Federal Circuit recently upheld Patent Trial and Appeal Board (PTAB) decisions that invalidated multiple claims in two LED patents. This ruling largely favored challengers such as General Electric Co. and semiconductor company Wolfspeed Inc.

The patents in question were:

• 6,465,961 - Semiconductor light source using a heat sink with a plurality of panels
• 6,634,770 - Light source using semiconductor devices mounted on a heat sink

The Federal Circuit's decision supported the PTAB's findings and marked a significant development in the ongoing legal battle surrounding these patents.

Key law firms involved in the case include Barnes & Thornburg, Brooks Kushman, Goodwin Procter, Kilpatrick Townsend, Meritz Reddy, Norton Rose, Shook Hardy, and Troutman.

Companies mentioned in the case include Diodes Inc., Drummond, Feit Electric, General Electric Co., and Wolfspeed Inc.

Government agencies involved were the Patent Trial and Appeal Board and the U.S. Court of Appeals for the Federal Circuit.

This ruling is expected to have a lasting impact on the LED lighting industry and sets a precedent for future patent disputes in the sector.