Law360, New York (March 12, 2009) -- An appeals court on Wednesday affirmed a U.S. Board of Patent Appeals ruling that a potentially less toxic method for preparing the pain reliever oxycodone was obvious, barring both parties in the dispute – who each claim to have discovered the process – from moving forward with their respective patent applications.
Plaintiff Robert Chapman and defendant Michael Casner both lay claim to the discovery of a safer way to make oxycodone, and with two judges in favor and one opposed, the...
