Patent · US Active

Oxycodone hydrochloride having less than 25 PPM 14-hydroxycodeinone

US9073933B2 · kind B2 · utility

16Cited by

56References

20Claims

0Family size

Assignees

PURDUE PHARMA L.P. · US
The P.F. Laboratories, Inc. · US
PURDUE PHARMACEUTICALS L.P. · US
RHODES TECHNOLOGIES · US

Inventors

Robert Chapman · Lac du Flambeau, US
Lonn S. Rider · Foster, US
Qi-Zhong Hong · Richardson, US
Donald J. Kyle · Yardley, US
Robert Kupper · Mount Airy, US

Key dates

Filing date	Feb 6, 2012
Grant date	Jul 7, 2015
Priority date	—
Expiry date	Dec 20, 2032

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC07D489/04
WIPO fieldPharmaceuticals
WIPO sectorChemistry

Abstract

In certain embodiments the invention is directed to a process for preparing an oxycodone hydrochloride composition having less than 25 ppm of 14-hydroxycodeinone.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.