communications, oral or in writing addressed to that or any other person, with proceedings for infringement of a patent, any person aggrieved thereby may bring a suit against him praying for the following reliefs, that is to say -
- a. a declaration to the effect that the threats are unjustifiable;
- b. an injunction against the continuance of the threats; and
- c. such damages, if any, as he has sustained thereby.
(2) Unless in such suit the defendant proves that the acts in respect of which the proceedings were threatened constitute or, if done, would constitute, an infringement of a patent or of rights arising from the publication of a complete specification in respect of a claim of the specification not shown by the plaintiff to be invalid, the court may grant to the plaintiff all or any of the reliefs prayed for.
Explanation – A mere notification of the [existence] of a patent does not constitute a threat of proceeding within the meaning of this section.
107. Defences etc., in suits for infringement
(1) In any suit for infringement of a patent, every ground on which it may be revoked under section 64 shall be available as a ground for defence.
(2) In any suit for infringement of a patent by the making, using or importation of any machine, apparatus or other article or by the using of any process or by the importation, use or distribution of any medicine or drug, it shall be a ground for defence that such making, using importation or distribution is in accordance with any or more of the conditions specified in section 47.
108. Reliefs in suits for infringement
The reliefs which a court may grant in any suit for infringement include an injunction(subject to such terms, if any, as the court thinks fit) and, at the option of the plaintiff, either damages or an account of profits.
109. Rights of exclusive licencee to take proceedings against infringement
(1) The holder of an exclusive licence shall have the like right as the patentee to institute a suit in respect of any infringement of the patent committed after the date of the licence, and in awarding damages or an account of profits or granting any other relief in any such suit the court shall take into consideration any loss suffered or likely to be suffered by the exclusive licensee as such or, as the case may be, the profits carried by means of the infringement so far as it constitutes an infringement of the rights of the exclusive licensee as such.
(2) In any suit for infringement of a patent by the holder of an exclusive licence under sub-section (1), the patentee shall, unless he has joined as a plaintiff in the suit, be added as a defendant, but a patentee so added as defendant shall not be liable for any costs unless he enters an appearance and takes part in the proceedings.
110. Right of licencee under section 84 to take proceedings against infringement
Any person to whom a licence has been granted under section 84 shall be entitled to call upon the patentee to take proceedings to prevent any infringement of the patent, and, if the patentee refuses or neglects to do so within two months after being so called upon, the licensee may institute proceedings for the infringement in his own name as though he were the patentee, making the patentee a defendant; but a patentee so added as defendant shall not be liable for any costs unless he enters an appearance and takes part in the proceedings.