Get your round-up of the week’s intellectual property news and opinion.

KitKat foiled again in attempt to trademark four-fingered bar’s shape

NestlĂ© loses legal battle with Cadbury over KitKat bar design, as court rules it has “no inherent distinctiveness”.

Patent wars: Stripping the iPhone bare.

BBC video journalist, Dougal Shaw, takes a look at the ongoing IP battles being waged by technology giants.

Apple’s latest invention: a pizza box

Apple solves the problem of soggy pizza for its employees with latest design patent.

Has pop finally run out of tunes?

Do pop and plagiarism go hand in hand? The Guardian’s Peter Robinson looks at Ed Sheeran’s latest settlement and talks to a forensic musicologist.

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