A trademark/logo is associated with the company's products or services. The use of trademarks should therefore be an important element in the marketing process. An established trademark will be a considerable competitive advantage. Just think of the value of trademarks like Huntonit, Isopor, Thermos, Sony, Tine, and Coca Cola etc.
The registration of a trademark prevents others from using the same mark or similar marks. Registered trademarks are recognized by the symbol ®.
A registration is valid for 10 years and is infinitely renewable. A trademark shows a logo, or it may consist of one word or more, possibly a figure-word combination.
A trademark does not have to be new to be registrable.