Granted Patent
Utility
US 5,928,984 · App. 08/845,447
Process for preparing catalytically active coatings for the synthesis of hydrogen cyanide
Inventors:
Lukas von Hippel, Christian Bussek, Joerg Sauer, Manfred Sauer, Dietrich Arntz
Patented Case
View Patent ↗
Granted: Jul 27, 1999
Filed: Apr 25, 1997
Inventors
Lukas von Hippel
Christian Bussek
Joerg Sauer
Manfred Sauer
Dietrich Arntz
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.