How do you go about getting a patent and trademark?

Trademark Lawyers in Vietnam

While it is possible to do this yourself, it really is best done through a lawyer who has experience in this. It is not unusual for lawyers to just offer a flat rate for the process, on a per-country basis.

Patents are another thing altogether. They are ridiculously difficult to file and to respond to all of the questions and concerns that come back from the Patent Office before your application is approved. For that matter, your application has to have engineering diagrams and descriptions of sufficient detail that someone else in your field would be able to build a prototype of your design.

You need a specialist lawyer, a patent attorney. Unless you actually are a patent lawyer, there is no way you would be able to succeed at getting a patent approved doing this by yourself.