Granted Patent
Utility
US 6,476,219 · App. 10/072,237
Methods for preparing phthalocyanine compositions
Inventors:
James M. Duff, James D. Mayo, Roger E. Gaynor, Jeffrey H. Banning, Michael B. Meinhardt, Randall R. Bridgeman, Nan-Xing Hu, Carol A. Jennings, Marko Saban, Paul F. Smith, Hadi K. Mahabadi
Patented Case
View Patent ↗
Granted: Nov 5, 2002
Filed: Feb 8, 2002
Inventors
James M. Duff
James D. Mayo
Roger E. Gaynor
Jeffrey H. Banning
Michael B. Meinhardt
Randall R. Bridgeman
Nan-Xing Hu
Carol A. Jennings
Marko Saban
Paul F. Smith
Hadi K. Mahabadi
Assignee (at issue)
Xerox Corporation
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.