Amazon's checkout-free grocery stores could be coming to the UK and Europe, if its recent intellectual property filings are anything to go by. Bloomberg reports that the retailer has successfully registered trademarks for slogans "No Lines. No Checkout. (No, Seriously.)" and "No Queue. No Checkout. (No, Seriously.)" with the UK Intellectual Property Office, hinting that it's already planning to its high-tech Amazon Go stores outside of the US.