Granted Patent
Utility
US 6,316,050 · App. 09/217,886
Method of producing hydrophobic pyrogenically produced oxides
Inventors:
Harald Troll, Thomas Hennig, Jurgen Meyer, Uwe Schachtely, Henning Karbe
Patented Case
View Patent ↗
Granted: Nov 13, 2001
Filed: Dec 22, 1998
Inventors
Harald Troll
Thomas Hennig
Jurgen Meyer
Uwe Schachtely
Henning Karbe
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.