Chinese smartphone manufacturer Huawei has filed a lawsuit against Samsung for allegedly infringing of eleven different patents.
In the lawsuits, filed in the USA and China, Huawei is seeking compensation from Samsung for "[persisting] in imprinting, selling and offering for sale a substantial volume of standard-compliant products that use Huawei's SEP technology without a license."
Samsung "directly infringed and continue to directly infringe" certain patents, according to the lawsuit.
Some of the patents referenced relate to LTE technology – a form of high-speed data connection for mobile phones that is often combined with 4G.
"We hope Samsung will respect Huawei's R&D investment and patents, stop infringing our patents and get the necessary license from Huawei, and work together with Huawei to jointly drive the industry forward," said Ding Jianxing, Huawei's president of intellectual property rights.
"Huawei believes that industry players should work together to push the industry forward through open, joint innovation. While respecting others' patents, we will also protect our own."
The lawsuit filed claimed that Samsung had earned "billions of dollars" by selling products that used Huawei's technology.
The devices accused of making use of patented technology include Samsung's flagship S7 and S7 edge as well as a raft of other smartphones and tablets. In total the lawsuit names 27 Samsung products alleged to contain Huawei's patented technology.
"We will thoroughly review the complaint and take appropriate action to defend Samsung's business interests," a spokesperson for the South Korean tech giant said.
Despite the legal wrangling, Samsung has made a strong start to 2016 as quarterly profits jumped 14 per cent year-on-year following the release of its new Galaxy smartphones.
The company's earnings rose to 5.3 trillion won (£3.2 billion) between January and March.
Huawei sold 106 million handsets in 2015, a growth of 44.3 per cent according to research firm IDC. In April, Huawei launched the P9, its latest flagship smartphone with dual-cameras manufactured in collaboration with German camera company Leica.