Granted Patent
Utility
US 6,642,424 · App. 09/849,356
Intermediates and improved processes for the preparation of neplanocin A
Inventors:
Naoyuki Yoshida, Kunio Ogasawara
Patented Case
View Patent ↗
Granted: Nov 4, 2003
Filed: May 7, 2001
Inventors
Naoyuki Yoshida
Kunio Ogasawara
Assignee (at issue)
Chisso Corporation
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.