Granted Patent
Utility
US 6,726,972 · App. 10/102,578
Optical data storage medium containing a diaza hemicyanine dye as the light-absorbing compound in the information layer
Inventors:
Horst Berneth, Friedrich-Karl Bruder, Wilfried Haese, Rainer Hagen, Karin Hassenruck, Serguei Kostromine, Peter Landenberger, Rafael Oser, Thomas Sommermann, Josef-Walter Stawitz, Thomas Bieringer
Patented Case
View Patent ↗
Granted: Apr 27, 2004
Filed: Mar 20, 2002
Inventors
Horst Berneth
Friedrich-Karl Bruder
Wilfried Haese
Rainer Hagen
Karin Hassenruck
Serguei Kostromine
Peter Landenberger
Rafael Oser
Thomas Sommermann
Josef-Walter Stawitz
Thomas Bieringer
Assignee (at issue)
Bayer Aktiengesellschaft
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.