Granted Patent
Utility
US 6,180,308 · App. 09/492,707
Developer compositions and processes
Inventors:
David H. Pan, Weizhong Zhao, John W. Spiewak, Christopher M. Knapp
Patented Case
View Patent ↗
Granted: Jan 30, 2001
Filed: Jan 27, 2000
Inventors
David H. Pan
Weizhong Zhao
John W. Spiewak
Christopher M. Knapp
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.