Granted Patent
Utility
US 5,593,963 · App. 08/146,424
Expression of phytase in plants
Inventors:
Albert Johannes Joseph Van Ooijen, Krijn Rietveld, Andreas Hoekema, Jan Pen, Peter Christian Sijmons, Teunis Cornelis Verwoerd
Patented Case
View Patent ↗
Granted: Jan 14, 1997
Filed: Nov 2, 1993
Inventors
Albert Johannes Joseph Van Ooijen
Krijn Rietveld
Andreas Hoekema
Jan Pen
Peter Christian Sijmons
Teunis Cornelis Verwoerd
Assignees (at issue)
Mogen International NV
Gist-Brocades B.V.
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.