April 8 (Reuters) - Nokia sued Taiwanese tech

companies Acer and Asus and China-based

Hisense in the United States, expanding the

companies' patent disputes over video coding technology.

The complaints filed Monday in California, Georgia and Texas

said Acer and Asus' computers and Hisense's televisions violate

five Nokia patents related to international standards that

improve the efficiency and quality of streaming video.

Nokia last week filed related complaints in Europe against

the same companies and settled a separate streaming-video patent

dispute with Amazon ( AMZN ).

Spokespeople for Acer, Asus and Hisense did not immediately

respond to requests for comment on Tuesday. Nokia said in a

statement that it hopes the companies "will soon agree to accept

a license on fair terms, just like many of their competitors

have done."

Finland-based Nokia transitioned from making cell phones in

the 2000s and 2010s to focusing largely on research and

development. It said in the lawsuits that it owns more than

20,000 patents worldwide.

The lawsuits said that Nokia has tried to negotiate licenses

to its standard-essential video coding patents with Acer, Asus

and Hisense for years. Standard-essential patents cover

technology that devices must include in order to comply with

international standards such as 4G, Wi-Fi and USB.

Nokia requested an unspecified amount of monetary damages in

the cases.

The cases are Nokia Technologies Oy v. Acer Inc, U.S.

District Court for the Western District of Texas, No.

1:25-cv-00523; Nokia Technologies Oy v. ASUSTek Computer Inc,

U.S. District Court for the Central District of California, No.

2:25-cv-03053; and Nokia Technologies Oy v. Hisense Co, U.S.

District Court for the Northern District of Georgia.

For Nokia: Warren Lipschitz, Alexandra Easley, Erik

Fountain, Mitch Verboncoeur, Joshua Budwin and Josh Newcomer of

McKool Smith

For the defendants: attorney information not yet available

Read more:

Amazon ( AMZN ), Nokia settle international patent dispute

(Reporting by Blake Brittain in Washington)