Granted Patent
Utility
US 6,706,852 · App. 10/187,549
Partially ester-exchanged SIPM and process therewith
Inventors:
Jiwen F. Duan, Xianyin Ma
Patented Case
View Patent ↗
Granted: Mar 16, 2004
Filed: Jul 2, 2002
Inventors
Jiwen F. Duan
Xianyin Ma
Assignee (at issue)
E.I. DU PONT DE NEMOURS AND COMPANY
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.