The purpose behind patent law is that a patent must be granted to an applicant when the invention of some product is useful and new. Further, the product must have utility and novelty. The object and purpose behind a patent is to encourage industrial progress, scientific, technological research etc. For a patent to be valid, the product must be the discovery of the inventor and should not be a corroboration of something that was already in existence before date of the patent.i A patent confers the right to the patentee to exclude others from making, importing, using, selling the invention etc. during its term.ii