Understanding Copyright and Trademark Symbols: What They Mean and How They Protect Your Intellectual Property
Jurisdiction: Australia. Reviewed 27 October 2026. Copyright notices and trade mark symbols help readers identify a rights claim. They do not prove that the claim is valid. The rules below use Australia as the starting point; US rules are identified separately. What does © mean? A copyright notice identifies a claimed owner of protected expression. Copyright is automatic in Australia when the legal requirements are met, and a notice is optional. Keep evidence of creation and any employment, commissioning or assignment arrangements; the person who puts a notice on a work is not necessarily its owner. What do ™ and ® mean? ™ may be used to identify a sign used as a trade mark, including an unregistered mark. ® is reserved for registered trade marks and should accompany the registered form. Registration is not required for every possible protection: passing off and consumer law may protect an established unregistered brand in suitable circumstances. Those claims have their own requirement...