No. You can use trademarked terms all you want in all sorts of writings. What you can't do is trade using that name. Merely discussing a trademarked product is

No. You can use trademarked terms all you want in all sorts of writings. What you can't do is trade using that name. Merely discussing a trademarked product is always allowed. And the ™ symbol is for unregistered trademarks, whereas ® is used for registered marks. In either case, these symbols are used by the company that owns or claims the marks, or by affiliates who agree to mark them as such when licensing the marks. I am not even remotely a lawyer so this is all just, like, what I think I know.