This is a common question that inventors will ask. Patent, Trademark or Copyright?
This is the method that protects inventions and improvement to existing inventions which consist of Utility, Design or Plant Patents. Things can be patented which “have a purpose”.
Trademarks are applied to words, names, devices, symbols and images that represent goods, services or products.
Copyright is applied to the expression of ideas in literary, artistic and musical work. For example you can copyright items written in a website or book.
You can combine all of the above categories if needed, ask you Patent lawyer for advice.