Trade Name vs Trademark: Two Different Things
Trademark is different from Trade Name. These two concepts aren't the same thing. When you want to register a name as a corporation name, you do it in the corporate registration office. Then you can have many trademarks under the same corporation name.
For example, your corporation name is Veshareh but what people see is ABC as the famous name in the pertinent job. If the name of your job is ABC, this is your business name; you have registered the corporation name, then you have registered the Trade Name, but none of them is a trademark. A trademark must be registered independently and it has nothing to do with registering your corporation name.
Another issue to consider is that when you register a Trade Name, if someone has registered a trademark with the same name before you, they can cancel your corporation name or Trade Name. This is how influential a trademark is, and you can easily file a lawsuit against anyone who would exploit your trademark.
While registering a corporation, you may realize another corporation in another city has your corporation name. This can't happen with a trademark. For example, if you have registered your corporation name in Ontario, Canada but not your Trade Name, you will realize later that someone else has registered it in British Columbia. That simple! However, if you do the trademark registration for your own name, it is not easy for people to use it because it is unique and especially registered for you.