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While you can’t patent an invention that has already been patented, you may be able to patent a particular function or design of it.
A utility patent is appropriate for new or improved inventions. Of course, in your situation, it would be for an improvement on an existing invention and not a patent for a brand new idea.
A design patent doesn’t focus on the use of the product at all. Instead, it focuses on the ornamental features of it. So, if you are creating a brand new look to an existing invention, then this may be protectable under this type of patent.
Source: Quora
If you are looking for an experienced IP services in Vietnam to help you with your IP application, you should visit ANTLawyers.vn. Our attorneys have experience with the IP process and will work closely with you as you apply for your IP.
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