Granted Patent
Utility
US 6,129,769 · App. 09/382,267
Enzymatic methods for dyeing with reduced vat and sulfur dyes
Inventors:
Feng Xu, Sonja Salmon, Heinz-Josef Deussen, Henrik Lund
Patented Case
View Patent ↗
Granted: Oct 10, 2000
Filed: Aug 24, 1999
Inventors
Feng Xu
Sonja Salmon
Heinz-Josef Deussen
Henrik Lund
Assignee (at issue)
Novo Nordisk Biotech, Inc.
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.