Practical Skills of Quickly Entering Trademark Copyright Symbols in WORD 3 and 4 Some special symbols such as trademark copyright need some special treatment when inputting daily documents. Today, I'm going to teach you the practical skills of quickly inputting these trademark copyright symbols. 1. Enter the trademark TM, and Alt+Ctrl+T will get the copyright symbol. There is a letter C in a circle. Press the key combination: ALT+CTRL+C.