Nouns

(n)hallmark, trademark, earmark, stylemarka distinctive characteristic or attribute of someone or something
(n)trademarka formally registered symbol (‘™’) identifying the manufacturer or distributor of a product

Verbs

(v)brand, trademark, brandmarkmark with a brand or trademark“when this product is not branded it sells for a lower price”
(v)trademarkregister the trademark of“The company trademarked their new gadget”