Granted Patent
Utility
US 6,709,507 · App. 10/226,898
Method of producing stabilized organic pigment particles and device therefor
Inventors:
An-Gong Yeh, Sandra Witman, James Hohman
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Aug 23, 2002
Inventors
An-Gong Yeh
Sandra Witman
James Hohman
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.