Trade marks were invented for commercial purposes. They help protect a brand so that no one else can financially benefit from them. Some brands have become so successful that they are used by people without realising that they are trade marks.
There is an upside and a downside to having a very popular brand name. If a brand is very famous and it becomes a household name, then its a testament to the successful marketing of the company. However, this can be a negative thing for a trade mark attorney. Click on the link below to continue reading and see the interactive guide to trade marks we use without realising.