Granted Patent
Utility
US 6,610,822 · App. 09/920,497
Purification process
Inventors:
Martin Chandler, Kent E. Goklen, Steven S. Lee, David J. Roush
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Aug 1, 2001
Inventors
Martin Chandler
Kent E. Goklen
Steven S. Lee
David J. Roush
Assignee (at issue)
MERCK & CO., INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.