Granted Patent
Utility
US 5,776,856 · App. 08/795,022
Soluble polymer based matrix for chemically active water insoluble components
Inventor:
Kolazi S. Narayanan
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Feb 4, 1997
Inventor
Kolazi S. Narayanan
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.