Granted Patent
Utility
US 6,433,253 · App. 09/370,644
Debranching enzymes and DNA sequences coding them, suitable for changing the degree of branching of amylopectin starch in plants
Inventors:
Jens Kossmann, Michael Emmermann, Ivar Virgin
Patented Case
View Patent ↗
Granted: Aug 13, 2002
Filed: Aug 6, 1999
Inventors
Jens Kossmann
Michael Emmermann
Ivar Virgin
Assignee (at issue)
Hoechst Schering Agrevo GmbH
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.