A trademark refers to any symbol, design or phrase that is used by a company to identify its brand or products. It is quite distinct from patents and copyrights in that it does not refer directly to the idea or its expression but more to the mark or design associated with the idea in order to make it recognizable. There are two main types of marks used- trademarks and service marks. Trademarks have been described above. Service marks are similar to trademarks except for the fact that it is associated with the source of the brand as opposed to the products.