Granted Patent
Utility
US 6,315,987 · App. 09/568,259
Polymeric delivery and release systems for oral care actives
Inventor:
Krystyna Plochocka
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: May 10, 2000
Inventor
Krystyna Plochocka
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.