Registering a trademark is one of the most effective strategies companies can use to protect their intellectual property (IP) assets. While the process of applying for a trademark registration can be daunting, registration comes with a number of benefits, such as nationwide constructive notice and the right to file a trademark infringement action in federal court. However, once registered, trademarks do not necessarily stay registered in perpetuity. Trademark owners can inadvertently lose their trademark rights, and third parties may petition the United States Patent and Trademark Office (USPTO) to cancel existing registrations in some circumstances. Canceling a trademark registration (or defending against a cancellation) is complex, but an Alabama trademark lawyer can assist you.