Major LED Manufacturer Reignites Patent War
Seoul Viosys recently announced that it has filed a patent infringement lawsuit against Feit Electric, the largest home lighting company in the United States, in the U.S. District Court for the Central District of California.
In the complaint, Seoul Viosys, a subsidiary of Seoul Semiconductor, stated that "Fight produces and sells six types of light-emitting diode (LED) lighting products, including omnidirectional filament technology, which infringes on patented technology."

Previously, filament LED lawsuits were filed in Europe. In 2020, the Düsseldorf Regional Court in Germany ruled that Philips lighting affiliate products infringed on Seoul Semiconductor's patent for improving the light extraction efficiency of filament LEDs. At that time, the Düsseldorf Regional Court ordered a permanent sales ban and ordered the recall and destruction of the infringing products.
Following the ruling, Seoul Semiconductor's filament became effective in 18 European countries, including Germany, France, the Netherlands, and Italy. These countries established the Unified Patent Court last year by joining the Agreement on a Unified Patent Court.
Over the past 30 years, Seoul Semiconductor has invested more than 10% of its revenue in R&D for opto-semiconductors and the development of second-generation LED technology, holding overwhelmingly leading Patent technologies among 18,000 LED companies. In particular, Seoul Semiconductor also possesses "WICOP" LED technology, which eliminates the need for wire bonding, a key material in manufacturing . Upholding the belief that "while birth is unequal, opportunities should be equal for all," Seoul Semiconductor has won all 102 lawsuits filed in 8 countries over the past 20 years, continuously striving to protect intellectual property rights. Related content was published in The Wall Street Journal and the Financial Times.
A representative from Seoul Viosys stated, "We have won all 102 lawsuits filed in 8 countries over the past 20 years, striving to respect intellectual property rights."
Source: Da Hua Display