Granted Patent
Utility
US 6,168,895 · App. 08/876,964
Pigment for electrophotographic toners and developers
Inventors:
Hans Joachim Metz, Rudiger Baur, Hans-Tobias Macholdt
Patented Case
View Patent ↗
Granted: Jan 2, 2001
Filed: Jun 17, 1997
Inventors
Hans Joachim Metz
Rudiger Baur
Hans-Tobias Macholdt
Assignee (at issue)
Clariant 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.