Submarine patent

A submarine patent is a kind of patent that people or companies get to protect their invention or idea. It's like something you put on your invention that says it is yours and nobody else can use it without your permission. Usually, the patent will last a certain number of years and if you don't renew it after that time, anyone can use your invention without asking you. To make sure no one steals your invention, you can get a submarine patent. This type of patent is called a submarine patent because it kind of looks like a submarine hiding on the bottom of the ocean, waiting to catch any other submarines that come close!