So, a patent is a form of intellectual property. It is a right to exclude others from practicing an invention, okay? So again, an invention is an applied technology of some sort. It could be a computer invention; computer-related technology such as software; or it could be a mechanical invention, like a gas turbine engine or some aspect of the engine. And a patent is a legal right granted by the US government, or a government of another country, that grants the owner of the patent the right to exclude others from practicing, making, selling, using that invention. The invention is defined by the claims of the patent; not the description, or the disclosure, or the example provided, but the claims.