Some styles, like the script used on Coca-Cola products, are so well known that even a completely different name in a similar script could be held to be confusingly similar.
2000: Comic book artist Kieron Dwyer was sued by Starbucks Coffee for parodying their famous mermaid logo within his comic book Lowest Common Denominator. Although the judge ruled that Starbucks could not sue a parody and the case settled out of court, Dwyer was forced to comply with the ruling that he could no longer use his logo for its confusing similarity to that of Starbucks.