Brand reversion

Sometimes a brand is so strong that you will even recognize it when the brand is mixed with another brand, or even with the brand of the competitor.

Brand reversion is an ongoing project of logo-designer Graham Smith, who also include logos of Apple and Android and Pepsi and Coca-Cola.

By reversing logos with that of a true competitor, gives rise to an alienating effect. Smith himself calls it also “logo with a split personality.

Source.