Patents Act, 1970
114. Relief for infringement of partially valid
specification
(1) If in proceedings for infringement of a patent it is found
that any claim of the specification, being a claim in respect of which
infringement is alleged, is valid but that any other claim is invalid, the
court may grant relief in respect of any valid claim which is infringed:
PROVIDED that the court shall not grant relief except
by way of injunction save in the circumstances mentioned in sub-section (2).
(2) Where the plaintiff proves that the invalid claim was framed
in good faith and with reasonable skill and knowledge, the court shall grant
relief in respect of any valid claim which is infringed subject to the
discretion of the court as to costs and as to the date from which damages or an
account of profits should be reckoned, and in exercising such discretion the
court may take into consideration the conduct of the parties in inserting such
invalid claim in the specification or permitting them to remain there.