Checking if a name is trademarked is a smart move to avoid legal issues. You can start by searching the United States Patent and Trademark Office (USPTO) database if you're in the U.S. Other countries have similar databases. Conducting an Internet search can help spot unregistered trademarks too. Are you considering trademarking a name for your own project? Feel free to share more about what you're working on, and we can explore further steps together!