The following post discusses two recent patent cases where the relief of permanent injunction became infructuous due to the expiration of the impugned patents. A related issue of commercialization of patents is also briefly discussed. U. Varadaraya Nayak v S.K. Anand, Del HC: In this case, the patentee a retired school teacher obtained a patent for an invention titled ‘twin blade razor’. The inventive feature of the blade was the “novel manner in which the holes are positioned in relation...
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