Nokia has filed numerous patent infringement complaints against smartphone brand OPPO regarding standard-essential patent (SEP) and non-SEP patents, the media reported.

These patents are about connectivity, interface and security features and the complaints are filed in European and Asian markets, reports GSMArena.

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Smartphone brands OPPO and Nokia had signed a multi-year licensing agreement back in 2018, and it appears that the contract is over, the report said.

The Finnish telecommunications company Nokia, put out an official statement that OPPO has rejected the offer of renewing the contract, so it had to take legal actions since Oppo continues to use those patents.

Media reports said that OPPO found Nokia’s action “shocking” and accused it of dishonouring the patent licensing under fair, reasonable, and non-discriminatory (FRAND) terms.

“OPPO respects and protects its own and third-party intellectual property rights, and has been committed to benign patent licensing cooperation in the industry. OPPO opposes unreasonable consultations such as using litigation as a tool,” the smartphone company said.

The spokesperson for Nokia “believes that there is still a more constructive way to deal with the situation”.

Nokia has many patents up its sleeve and has signed royalty-bearing agreements with Samsung, Apple, LG, Lenovo and even Blackberry, the report said.

Both the companies have not revealed how closely they would integrate. A new leaked memo has disclosed that OnePlus will become OPPO’s sub-brand.