For MasterCard, not enough to keep it in the logo. The company is removing the word Mastercard from the pair of interlocking red and yellow circles where it has resided for more than 50 years.

Discount supermarket Lidl uses a yellow circle in its main logo Credit: Andrew Matthews/PA. A Lidl spokesman said after the ruling: “We are pleased that the court has agreed with us. ...

Britain's biggest retailer Tesco on Tuesday lost an appeal against a ruling that it infringed German discount supermarket Lidl's trademark over the use of a yellow circle on a square blue background.