On Tuesday, Apple Inc. (AAPL.O)’s appeal in a long-running battle with a U.S. patent holder was rejected by London’s Court of Appeal.
In 2019, Texas-based Optis Cellular Technology LLC sued Apple for using patents Optis claims are vital to 4G technology.
London’s High Court decided last year that Apple infringed two Optis’ 4G standard fundamental patents.
In May, Apple appealed, alleging that the two patents were not crucial to 4G standards and had not violated them.
Judge Colin Birss of the Court of Appeal said the High Court was “right to reject (Apple’s) argument for non-infringement” and on the patents’ essentiality.
Apple and Optis did not comment.
Apple and Optis’ legal struggle, which began in 2019, has resulted in six trials and several appeal hearings in Britain.
Following an October ruling that Optis is entitled to an injunction to stop Apple from infringing its patents before a court decides on fair, reasonable, and non-discriminatory terms of use, the Court of Appeal last month upheld Optis’ appeal against the revocation of two other 4G-related patents.
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