Hanmi challenges against Pfizer

Published: 2012-10-22 07:00:00

Updated: 2012-10-22 07:00:00

Pfizer Korea filed a suit against Hanmi Pharmaceutical Co. at the Seoul Central District Court for patent infringement, claiming the latter’s Palpal tablet infringed Vigra’s tablet design.

In response to the lawsuit, Hanmi side said Thursday that its design is different from that of Viagra, in that Palpal is a linear rectangular tablet using a different company logo, while Viagra is a blue, ...

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