Granted Patent
Utility
US 5,599,916 · App. 08/362,395
Chitosan salts having improved absorbent properties and process for the preparation thereof
Inventors:
Jacek K. Dutkiewicz, Xin Ning, Jian Qin, Tong Sun
Patented Case
View Patent ↗
Granted: Feb 4, 1997
Filed: Dec 22, 1994
Inventors
Jacek K. Dutkiewicz
Xin Ning
Jian Qin
Tong Sun
Assignee (at issue)
Kimberly-Clark Inc.
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.