in $1993$ Purdy Pharmaceuticals of Stamford Connecticut applied for the first series in the patent of Oxycontin a painkiller the US patent and trademark office PTO granted those patents based on the manufacturer's contention that the drug contained a novel Innovation have been engineered so that only very small dose was required for the drug to be effective for $90\%$ of patients $7$ years later a generic drug maker and the pharmaceutical supply to the FDA for permission to sell its own lower priced version of Oxycontin