LG Electronics has filed a lawsuit against US smartphone maker BLU for alleged patent infringement.
The South Korean tech giant said BLU infringed five of its LTE standard patents. Since last year, it sent notices informing BLU of its infringement without reply, the company said.
LG filed the damages suit against the US firm to the district court of Delaware. It also sent a request to the US's International Trade Commission (ITC) to halt BLU smartphone sales.
The preliminary judgment will likely come out in the first half of next year and the final one in the second half.
This is the first time LG Electronics has filed first a patent suit in handsets against a competitor.
BLU sold 5.2 million smartphones in the US and is ranked sixth there, the South Korean tech giant said.
LG has the most LTE and LTE-A standard essential patents in the US for the fifth straight year since 2012, according to patent consultancy TechIPM.