Granted Patent
Utility
US 6,541,565 · App. 09/882,415
Polymeric system for delivering an active material
Inventors:
David K. Hood, Stephen L. Kopolow, Michael A. Tallon, Yoon Tae Kwak, Laurence Senak, Drupesh Patel, John Mc Kittrick
Patented Case
View Patent ↗
Granted: Apr 1, 2003
Filed: Jun 15, 2001
Inventors
David K. Hood
Stephen L. Kopolow
Michael A. Tallon
Yoon Tae Kwak
Laurence Senak
Drupesh Patel
John Mc Kittrick
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.