Granted Patent
Utility
US 6,103,831 · App. 09/287,923
Water soluble dye complexing polymers
Inventors:
Jenn S. Shih, Bala Srinivas, John C. Hornby
Patented Case
View Patent ↗
Granted: Aug 15, 2000
Filed: Apr 7, 1999
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.