Colgate-Palmolive has filed a lawsuit in federal court defending its right to use a "nurdle" image and the phrase "Triple Action" on its toothpaste packaging, according to a story in the Wall Street ...

A pair of toothpaste makers have squared off in court over a marketing icon, the "nurdle." For the uninitiated, the nurdle is that curvy squirt of toothpaste—perfectly shaped in advertisements—that ...