LG Innotek announced that the company has filed a lawsuit against Evergreat, a U.S. based UV nail dryer manufacturer, for patent infringement. The lawsuit alleges that Evergreat used LG Innotek's LED chip technology patents in all of its 10 UV nail dryer models without its permission.

According to LG Innoteck, the company has sent warning letters to Evergreat asking it to stop unauthorized use of the patents since January. But as Evergreat did not respond, LG Innoteck filed lawsuits with the U.S. District Court for the Northern District of California and the U.S. District Court for the Central District of California on July 25th.

LG Innotek requested the courts to ban the sales and manufacturing of the UV nail dryers and asked Evergreat to compensate the damages for the Korean company. This is the first time LG Innotek has filed a patent lawsuit regarding its UV LED products.

(Image: LG Innotek)

UV nail dryers are used to dry nails quickly after applying polish to fingernails and toenails with ultraviolet rays that chemically react with certain materials. UV LEDs is commonly used as a safe light source with excellent performance. LG Innotek has introduced UV LEDs of various wavelengths for different applications including curing, sterilization and horticulture. The company holds a leading position in the market and intends to strengthen enforcement of its UV LED patents and fight against unauthorized use of its technologies to protect its intellectual property rights.

Kim Jin-hyun, a vice president of the intellectual property division of the company, said, "We have been developing our core UV LED technologies through continuous investment and R&D for many years. We will strictly deal with unfair patent infringement by our competitors."