Granted Patent
Utility
US 6,500,917 · App. 09/489,831
Process for the preparation of polyether phosphates
Inventors:
Manohar T. Saindane, David L. Ladd
Patented Case
View Patent ↗
Granted: Dec 31, 2002
Filed: Jan 24, 2000
Inventors
Manohar T. Saindane
David L. Ladd
Assignee (at issue)
Amersham Health AS
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.