Granted Patent
Utility
US 6,045,859 · App. 09/077,751
Method for the coloring of ceramic surfaces
Inventors:
Thomas Klein, Thomas Staffel, Lysander Fischer, Richard Walter, PETER PATZELT
Patented Case
View Patent ↗
Granted: Apr 4, 2000
Filed: Nov 12, 1998
Inventors
Thomas Klein
Thomas Staffel
Lysander Fischer
Richard Walter
PETER PATZELT
Assignee (at issue)
BK Giulini Chemie GmbH & Co. OHG
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.