A patent in an exclusive right granted by a country to the owner of an invention to make, use, manufacture and market the invention, provided the invention satisfies certain conditions stipulated in the law.
Exclusivity of right implies that no one else can make, use, manufacture or market the invention without the consent of the patent holder. This right is available only for a limited period of time.
However, the use or exploitation of a patent may be affected by other laws of the country which has awarded the patent.
These laws may relate to health, safety, food, security etc. Further, existing patents in similar area may also come in the way. A patent in the law is a property right and hence, can be gifted, inherited, assigned, sold or licensed.
As the right is conferred by the State, it can be revoked by the State under very special circumstances even if the patent has been sold or licensed or manufactured or marketed in the meantime.
The patent right is territorial in nature and inventors/their assignees will have to file separate patent applications in countries of their interest, along with necessary fees, for obtaining patents in those countries.
A patent specification can be prepared by the applicant himself or his registered and authorized agent. The patent specification generally comprises of the title of the invention indicating its technical field, prior art, draw backs in the prior art, the solution provided by the inventor to obviate the drawbacks of the prior art, a concise but sufficient description of the invention and its usefulness, drawings (if Any) and details of best method of its working.
The complete specification must contain at least one claim or statement of claims defining the scope of the invention for which protection is sought for.