Which term refers to all legally registered brand identifiers?

The term that refers to all legally registered brand identifiers is trademarks. Trademarks encompass a wide range of identifiers that can include logos, brand names, slogans, and even sounds or colors associated with a particular brand. These identifiers serve to distinguish one company’s products or services from those of others in the marketplace, thus helping to prevent consumer confusion about the source of products.

Trademarks are legally protected through registration, which grants the owner exclusive rights to use those identifiers in commerce. This legal protection is essential for maintaining the integrity of a brand and enabling companies to build goodwill with their consumers.

In contrast to trademarks, patents protect inventions and processes, while copyrights specifically apply to the protection of original works of authorship, such as music, literature, and art. Logos themselves can be a type of trademark, but the term 'logos' is not broad enough to cover all brand identifiers. Thus, trademarks are the most comprehensive and legally recognized category for identifying the various elements that represent a brand in the marketplace.