Granted Patent
Utility
US 5,871,952 · App. 08/835,897
Process for selection of Oxygen-tolerant algal mutants that produce H.sub.2
Inventors:
Maria Lucia Ghirardi, Michael Seibert
Patented Case
View Patent ↗
Granted: Feb 16, 1999
Filed: Apr 14, 1997
Inventors
Maria Lucia Ghirardi
Michael Seibert
Assignee (at issue)
Midwest Research Institute, 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.