trademark

A word, symbol, or phrase used to identify a particular company's product and differentiate it from other companies' products.

Especially, such a term that is registered with a government agency so as to have legal protection against use by other companies.

Any proprietary business, product or service name.

The aspect for which someone or something is best known; a hallmark or typical characteristic.

To register something as a trademark.

To so label a product.

Distinctive, characteristic, signature.