Overall, the economic rationale of having trademark protection is to help the business achieve product differentiation, to protect the trademark owner's business from unfair competition as well as the public against confusion in the market place. ###>En présentant le projet de loi qui allait devenir la United States Federal Trademark Act of 1946 (Lanham Act), le comité sur les brevets du Sénat américain a souligné la raison d'être fondamentale de la protection des marques de commerce :