Seoul Viosys recently announced that it has filed a patent infringement lawsuit against Feit Electric, the largest residential lighting company in the United States, in the Central District of California.
In the complaint, Seoul Semiconductor’s subsidiary Seoul Viosys stated that “Feit manufactures and sells six types of LED lighting products, including omnidirectional filament LED packages developed jointly by Seoul Semiconductor and Seoul Viosys, which infringe on patented technology.
Previously, Seoul Semiconductor had filed a filament LED lawsuit in Europe. In 2020, the District Court of Düsseldorf in Germany ruled that products affiliated with Philips Lighting infringed Seoul Semiconductor’s patent for improving the light extraction efficiency of filament LEDs. Following the ruling, the court issued a permanent injunction against sales and ordered the recall and destruction of infringing products.
Post-verdict, Seoul Semiconductor’s filament LED patent became effective in 18 European countries including Germany, France, the Netherlands, and Italy. These countries established the Unified Patent Court (UPC) last year, joining the Unified Patent Court Agreement.
Over the past 30 years, Seoul Semiconductor has invested over 10% of its revenue in opto-semiconductor R&D and developed second-generation LED technology. It holds overwhelmingly dominant patented technologies among 18,000 LED companies. Particularly, Seoul Semiconductor possesses the “WICOP” technology for LED without wire bonding, crucial for Micro LED production. Upholding the belief in “born unequal, yet opportunities should be equal,” Seoul Semiconductor has won all 102 lawsuits filed in 8 countries over the past two decades, consistently protecting intellectual property rights. This information has been featured in publications such as the Street Journal and Financial Times magazines.
A representative from Seoul Viosys stated, “Over the past 20 years, we have won all 102 lawsuits filed in 8 countries, striving to uphold respect for intellectual property rights.”
