A trademark is a mark used for a product and it is an indication that the product with such trademark is different from products of other trademarks.  

Examples: 

A Service Trademark is a mark used for a service and is an indication the service with such service mark is different from services of other service mark.

Examples: 

A Certificate Mark is a mark used by the owner to certify the origin, composition, method of production, or characteristics of the goods or services of another person. 

Examples: 

A Collective Mark is a trademark or service mark used by companies or enterprises of the same group or by members of association, cooperative, union, state or private organizations. 

Examples: