A patent for an invention, design or plant in the United States is the grant of a property right to the inventor or designer issued by the United States Patent and Trademark Office (USPTO). It is the exclusive right for a limited time period to make, use or sell the invention in the United States; it also prohibits others from importing the invention into the United States.
There are three types of patents:
Information about United States patents and answers to many questions about them can be found on these USPTO web pages: