Granted Patent
Utility
US 5,752,980 · App. 08/776,901
Bleaching process comprising use of phenol oxidizing enzyme, a hydrogen peroxide source and an enhancing agent
Inventors:
Anders Hjelholt Pedersen, Jesper Vallentin Kierulff
Patented Case
View Patent ↗
Granted: May 19, 1998
Filed: Feb 4, 1997
Inventors
Anders Hjelholt Pedersen
Jesper Vallentin Kierulff
Assignee (at issue)
Novo Nordisk 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.