The procedure for granting patents, the requirements placed on the patentee and the extent of the exclusive rights vary widely between countries according to national laws and international agreements. Typically, however, a patent application must include one or more claims defining the invention which must be new, inventive, and useful or industrially applicable. The exclusive right granted to a patentee in most countries is the right to prevent or exclude others from making, using, selling, offering to sell or importing the invention.
Some other types of intellectual property rights are referred to as "patents" in some jurisdictions: industrial design rights are called "design patents" in some jurisdictions (they protect the visual design of objects that are not purely utilitarian), plant breeders' rights are sometimes called "plant patents", and utility models or Gebrauchsmuster are sometimes called "petty patents". This article relates primarily to the patent for an invention, although so-called petty patents and utility models may also be granted for inventions. Land grants were sometimes called "letters patent", which was a government notice to the public of a grant of an exclusive right to ownership and possession.