An International Guide to
Patent Case Management for Judges

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6.7.1 Permanent injunction

Under Section 108(1) of the Patents Act, 1970, a patentee may seek a permanent injunction as a final remedy. The Specific Relief Act, 1963, regulates the relief of permanent injunction, and courts retain discretion to deny permanent injunctions in some cases. For instance, in F Hoffmann-La Roche Ltd v. Cipla Ltd,210 a permanent injunction was not granted because the defendant had already been in the market for several years, and the patent was about to expire. Usually, however, permanent injunctions follow a finding of infringement and validity in favor of the patentee.

The court may grant relief by way of an injunction for infringement of a partially valid specification where the invalid claim was framed in good faith and with reasonable skill and knowledge.211 A permanent injunction may be granted only in cases where there is a valid patent, and the defendant has infringed that patent.