From Consumerium development wiki R&D Wiki

    Brand is a feature of product

    A brand can be identified by combining the triple country, company that holds rights to the name, and the brand name itself.

    The company component is essential, because brand name clashes within a country are possible (usually on a very small scale though). If two small businesses operating on different fields in different places use the same brand name for their product or service, it's not a big problem.

    Don't confuse a brand with a trademark. The trademark is property reflecting social capital. The brand is a more psychological concept.
    Why not. The average consumer does not make distinctions between what is a brand and what is a trademark and aren't brands usually trademarked?

    See Brand management for more indepth information to the world of brands.