Apple has filed suit against Samsung, claiming the Korean firm's tablets and smartphones are "blatant" copies of the iPhone and iPad.
Among the patents involved in Apple's action are UI design elements of the Galaxy smartphones and Galaxy Tab tablets. Apple filed 16 claims in total against Samsung, noting that Samsung had a different UI style prior to Apple products being launched.
"It’s no coincidence that Samsung’s latest products look a lot like the iPhone and iPad, from the shape of the hardware to the user interface and even the packaging," said Apple spokeswoman Kristin Huguet in a statement.
"This kind of blatant copying is wrong, and we need to protect Apple’s intellectual property when companies steal our ideas," Huguet added.
The move means that Apple is effectively suing the manufacturer of a number of parts in Apple products such as A4 processor and display panels.
Samsung shot back a statement which said the firm would "respond actively to this legal action taken against us through appropriate legal measures."