Granted Patent
Utility
US 6,156,552 · App. 09/251,383
Lipase variants
Inventors:
Jens Okkels, Shiro Fukuyama, Tomoko Matsui, Tadashi Yoneda
Patented Case
View Patent ↗
Granted: Dec 5, 2000
Filed: Feb 17, 1999
Inventors
Jens Okkels
Shiro Fukuyama
Tomoko Matsui
Tadashi Yoneda
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.