
Starbucks has been in dispute with Alaska-based Mountains and Mermaids for several years. It kind of half won a previous case in which it argued that the company's Siren's Brew coffee brand could confuse consumers. But now it complains that the company is continuing to sell coffee using the fish-woman name and imagery.
The original hand-drawn Starbucks logo was created in 1971. The brand identity has evolved since then, but the logo continues to show a siren, which Starbucks thinks should prevent other brands from mixing the mythical sea creature with caffeinated beverages.