Granted Patent
Utility
US 6,509,188 · App. 09/926,278
Photobioreactor with improved supply of light by surface enlargement, wavelength shifter bars or light transport
Inventors:
Walter Trosch, Ulrike Schmid-Staiger, Armin Zastrow, Alexander Retze, Franz Brucker
Patented Case
View Patent ↗
Granted: Jan 21, 2003
Filed: Oct 31, 2001
Inventors
Walter Trosch
Ulrike Schmid-Staiger
Armin Zastrow
Alexander Retze
Franz Brucker
Assignee (at issue)
Fraunhofer-Gesellschaft e.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.