Granted Patent
Utility
US 5,252,320 · App. 07/512,288
PVP-HI-I.sub.2 complexes having a partition coefficient above 300, and process for making same
Inventor:
John J. Merianos
Patented Case
View Patent ↗
Granted: Oct 12, 1993
Filed: Apr 20, 1990
Inventor
John J. Merianos
Assignee (at issue)
ISP INVESTMENTS LLC
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.