Granted Patent
Utility
US 6,815,136 · App. 09/514,699
Liquid developers and processes thereof
Inventors:
Weizhong Zhao, Thomas W. Smith, David H. Pan, William M. Prest, Jr., Samuel Kaplan
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Feb 28, 2000
Inventors
Weizhong Zhao
Thomas W. Smith
David H. Pan
William M. Prest, Jr.
Samuel Kaplan
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.