Granted Patent
Utility
US 6,399,561 · App. 09/305,890
Methods and compositions for bleaching a dye in solution
Inventors:
Palle Schneider, Heinz-Josef Deussen
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: May 5, 1999
Inventors
Palle Schneider
Heinz-Josef Deussen
Assignee (at issue)
Novozymes A/S
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.