Granted Patent
Utility
US 5,776,879 · App. 08/932,448
Water soluble dye complexing polymers
Inventors:
Jenn S. Shih, Bala Srinivas, John C. Hornby
Patented Case
View Patent ↗
Granted: Jul 7, 1998
Filed: Sep 19, 1997
Inventors
Jenn S. Shih
Bala Srinivas
John C. Hornby
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.