An R on the product means that the trademark has been approved for registration, and it is legally used and protected by law, while TM means that the trademark was not protected by law before it was approved for registration, and the trademark registration was unsuccessful at% 100. Therefore, most enterprises will choose to buy the trademark directly for rapid development, that is, they can take it immediately, with zero risk, and more than 654.38 million idle trademarks can be freely selected. thulium (Tm)