Placing "TM" next to your company name or logo when you do not have a registered trademark.

I previously discussed in greater depth the distinction between "TM" and R-Circle, when placed immediately next to a logo or trade name. Keep in mind that R-Circle can only be used if you have a registered trademark with the United States Patent and Trademark Office. But if you have a pending application with the USPTO, or simply want to claim common law trademark rights in your logo or business name, you can use "TM."