Granted Patent
Utility
US 6,627,173 · App. 09/817,789
Doped titanium dioxide
Inventors:
Ina Hemme, Helmut Mangold, Sven-Uwe Geissen, Anna Moiseev
Patented Case
View Patent ↗
Granted: Sep 30, 2003
Filed: Mar 27, 2001
Inventors
Ina Hemme
Helmut Mangold
Sven-Uwe Geissen
Anna Moiseev
Assignee (at issue)
Degussa AG
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.