A PATENT is a grant from Government, which confers on the grantee for a limited period of time, the exclusive privilege of making, selling and using the invention for which a patent has been granted and also of authorizing others of doing so.
REQUIREMENTS OF PATENTS ARE
1) The subject matter should be new. This is test of novelty.
2) It should be useful. This is test of utility.
3) It should be an invention. It should be non-obvious.
4) It should be a manner of manufacture, i.e. it should be capable of industrial application.
5) Vendibility test (i.e. test of marketability) is important – the subject matter should have commercial purpose.
Any invention* which satisfies the definition of invention given in the Act may be patented.
*Invention means a new product or process involving an inventive step and capable of industrial application.
There are also Design Patents and Process Patents.