Generics pharmaceuticals company Natco Pharma Limited, which had recently established its Crop Health Sciences (CHS) division, on Monday informed that it has filed a suit for declaration of freedom to use Chlorantraniliprole(CTPR) at the city civil court here.
Natco is also awaiting regulatory approval for a product based on CTPR, which is a broad spectrum insecticide used in several crops.
CTPR is an active ingredient used in products commercialised by FMC under their brands Coragen and Ferterra. Following the Natco's action, FMC counter-sued the Hyderabad-based company in Delhi High Court claiming patent infringement.
Natco said it was hoping to bring formulations based on

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