Trademark search is the first step in registering your trademark. The trademark search process entails searching for any previous registration or use of the logo or mark that the inventor intends to register. It is done to prevent the liability for unauthorized use of an already registered trademark. If a trademark already exists for the logo or mark that the inventor intends to use, the application would be refused. The search covers registered trademarks in respective countries. If it is found that a similar trademark exists in any of those countries, the trademark application would be rejected.