Patents Act, 1964

Effect and form of patent.

25.—(1) Subject to the provisions of this Act, every patent granted under this Act and sealed with the official seal of the Controller shall operate and have effect and shall be expressed to operate and have effect—

(a) to confer on the person to whom the same is granted, his executors, administrators and assigns (in this subsection collectively referred to as the grantee) the full, sole, and exclusive right, power and authority by himself, his agents or licensees at all times so long as the patent remains in force to make, use, exercise, and vend in the State the invention in respect of which the patent is granted;

(b) to confer on the grantee the sole right to have and enjoy the whole profit and advantage from time to time accruing by reason of the said invention during such period as the patent remains in force;

(c) to prohibit all persons whatsoever in the State while the patent remains in force from making use of or putting in practice the said invention or any part thereof, or in anywise imitating the same or in anywise representing or pretending themselves to be the inventors of the said invention or of the said invention with any addition thereto or subtraction therefrom without the consent, licence or agreement of the grantee in writing under his hand and seal;

(d) to make all persons who, while the patent remains in force, shall in the State in anywise infringe any right, power, or authority expressed in the patent to be thereby conferred on the grantee or do any act, matter, or thing the doing of which is expressed in the patent to be thereby prohibited, answerable according to law to the grantee for such infringement or the doing of such act, matter, or thing.

(2) Every patent shall be in the prescribed form and shall be granted for one invention only, but the specification may contain more than one claim; and it shall not be competent for any person in an action or other proceeding to take any objection to a patent on the ground that it has been granted for more than one invention.