What is the difference between a trade name and a trademark?

A trade name (also know as an assumed name or "doing business as") is the name an owner uses to identify his or her business. A trademark is used to identify the goods and products that an individual or business offers to the public.

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Do I need to register my trademark?

No. It is not required that you register your trademark or service mark in order to establish ownership rights. Registration of the trademark creates a legal presumption of the registrant's ownership of the mark and the registrant's exclusive right to use the mark in the state commerce in connection with the goods or services described in the application.

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Trade Mark/Service Mark

What is the difference between a service mark and a trademark?
A service mark is used in connection with services, while a trademark is used in connection with tangible goods. The general terms "mark" or "trademark" may be used to describe both trademarks and service marks.

Do I need to register my trademark?
No. It is not required that you register your trademark or service mark in order to establish ownership rights. Registration of the trademark creates a legal presumption of the registrant's ownership of the mark and the registrant's exclusive right to use the mark in the state commerce in connection with the goods or services described in the application.

Source: http://www.infotaxsquare.com