You want to type the trademark symbol ™ and ® on a Mac? It's easy.
For ™, it's Option-2.
For ®, it's Option-R
The TM in superscript is for a common-law (unregistered) trademark, and the R is only for registered trademarks, so you cannot use R when an application is still in examination, unfortunately.
Give it a try! No more copying the character from a website that uses it and then pasting into your text!