LONDON, July 4 (Reuters) - Apple Inc (AAPL.O) infringed two telecommunications patents used in devices including iPhones and iPads, London's Court of Appeal ruled on Tuesday, dismissing the tech giant's appeal in a long-running dispute with a U.S. patent holder. Texas-based Optis Cellular Technology LLC sued Apple in 2019 over its use of patents which Optis says are essential to certain technological standards, such as 4G. London's High Court ruled last year that two of Optis' 4G patents were so-called standard essential patents and that Apple had infringed them. Apple appealed against that decision in May, arguing that the two patents in issue were not essential to 4G standards and that it had not infringed the patents. Apple and Optis did not immediately respond to a request for comment.

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Persons: Colin Birss, Optis, Apple, Sam Tobin, Emelia Sithole Organizations: Apple Inc, U.S, Cellular Technology LLC, Apple, Thomson Locations: London's, Texas, Britain