How do you get an idea patented?

While an idea is not eligible for patent protection, most reproduceable inventions are. If you have created something new, novel, and reproduceable, chances are that your creation is eligible for legally enforceable intellectual property rights protection. 

Vietnam patent 

It’s important to understand that not all creations are treated the same under the law. If you’re an artist, author, or musician and you’ve created an original work of art or authorship, your work isn’t patentable. Instead, you’ll want to register the copyright for your work (which is created as soon as your work is fixed in a tangible form) with the U.S. Copyright Office. If your business has developed a branding tool, such as a graphic, logo, phrase, original domain name, etc. then you’ll need to register your original trademark with the United States Patent and Trademark Office. However, if your novel and reproduceable creative work is a manufactured product, process, machine, product design, or plant species, that work may be patentable.

Source: Quora