Granted Patent
Utility
US 6,713,623 · App. 10/008,572
Tetraphosphonate bicyclic trisanhydrides
Inventors:
Krzysztof W. Pankiewicz, Krystyna Lesiak, Kyoichi A. Watanabe
Patented Case
View Patent ↗
Granted: Mar 30, 2004
Filed: Nov 13, 2001
Inventors
Krzysztof W. Pankiewicz
Krystyna Lesiak
Kyoichi A. Watanabe
Assignee (at issue)
Pharmasset, 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.