Trademark provides a possibility of naming e.g. a product, a service or a new invention to make it clearly distinctive, even by its name, from ther competitive products in the marketplace.
Trademarks may currently be black-and-white or coloured word marks, word/figure combinations, figures, or else e.g. sound effects of a certain type, or image sequences. Trademark registration may also cover unconventional-looking product packages, which may have their appearance protected by a registration for as long as the trademark protection is maintained valid.
A trademark receives its final registration after a technical examination and an opposition period, so a granted trademark has usually good validity. Another benefit of trademark registration is that it's often perceived as a so-called high-tech status.