https://apnews.com/c40522d81852c53628839355b5c6beb7 > BEIJING (AP) — Chinese tech giant Huawei accused U.S. phone carrier Verizon of violating its patents in a lawsuit filed Thursday, broadening efforts to defend company's business in the United States amid government sanctions. > Huawei Technologies Ltd. accused Verizon Communications Inc. of violating 12 patents on optical transmission, digital communications and other technology, according to a copy of the lawsuit released by the company. Huawei said it filed the lawsuit after negotiations failed to produce a licensing agreement.