Supermarkets Tesco and Lidl have begun a court fight in London over the use of a yellow circle logo. German discount chain Lidl says a trademark, and copyright, has been infringed, while Tesco has ...

German discounter claims its rival has infringed its trademark by using design for Clubcard promotions Lidl has accused its bigger rival Tesco of “deception” during the latest round of a long-running ...